Dr Eberhardt has been conducting a study in which he wants to know how much glucose is generated by blue-green algae when they are placed under blue light for 4 hours. There are two methods that he can used to determine glucose levels and he needs to know which one is more accurate. In method 1, a hexokinase activity assay is used and the mean of 10 algal samples is 120 mmol, with a standard deviation of 4.8 In method 2, a glucose oxidase activity assay is used and the mean of the same 10 algal samples is 100 mmol, the standard deviation is 4.

Which method is more accurate?

a. both are equally accurate based on their coefficients of variation
b. method 2, because it has a smaller standard deviation
c. method 1, because although the standard deviation is greater so is the mean
d. you would need to know the range in order to see which is more accurate

Answers

Answer 1
U ok? That sounds soo Hard as a question a both

Related Questions

I DONT HAVE A COMPASS SO I NEED HELP. PLEASE AND THANK YOU!

Answers

Answer:

The figure is rotated 180 degrees. Also we don't use "compasses" in math.

Step-by-step explanation:

18/23 as a decimal rounded to the nearest hundreth

Answers

Answer:

18/23=0.7826

0.7826 rounded to the nearest hundredth is 0.78

Your answer is 0.78

Answer:

0.78

Step-by-step explanation:

All you have to do is 18 divided by 23. That equals 0.78260869565 which when rounding to nearest hundreth is equal to 0.78 because hundreth is to the second decimal place.

Can you please help me?

Answers

Answer:

idek

Step-by-step explanation:

srry

2 points
6. The drawing below shows a ladder leaning against a building. Part A:
How tall is the building? Round your answer to the nearest tenth. Show or
explain your answer using words, numbers, and/or symbols in your
explanation.
YOZ
10 ft
Your answer

Answers

Answer:

Height = 17.3 ft

Step-by-step explanation:

The diagram depicts a right angled triangle and will be solved using Pythagoras theorem.

Represent the length of the ladder with L

L = 20

Represent the distance between the ladder and thr building with B

B = 10

Represent the height with of the building with H

Solving for H, we have

H² + B² = L²

H² + 10² = 20²

H² + 100 = 400

H² = 400 - 100

H² = 300

H = √300

H = 17.320508075688772

H = 17.3 (approximated)

Hence, the height of the building is 17.3 ft

*
What is the degree of the monomial?
– 13x^5y^3z

Answers

Answer:  9

Explanation:

-13x^5y^3z is the same as -13x^5y^3z^1

The exponents 5,3,1 add to 5+3+1 = 9 which is the degree of the monomial.

What is 78 divided by 19 with remander

Answers

Answer:

by using calculator

Step-by-step explanation:

94737

Answer:

It is 4 with a remainder of 2

Step-by-step explanation:

Given below are lease terms at the local dealership. What is the total cash
due at signing?
Terms:
• Length of lease = 36 months
• MSRP of the car = $27,500
• Purchase value of the car after lease = $17,500
• Down payment = $3400
• Monthly payment = $425
• $375 security deposit
• $500 acquisition fee

Answers

Answer:

4275$

Step-by-step explanation:

3400 down pmt + 375 sec dep + 500 fee

The total cash due at signing is, $15300

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

What is an equation?

An equation is written in the form of variables and constants separated by the operation of multiplication and division,

An equation states that terms in different forms on both sides of the equality sign are equal.

Multiplication and division do not separate the terms of an equation.

Given, The MSRP of the car is,  $27,500.

Now, The monthly payment = $425 and it is for 36 months,

Therefore, The total monthly downpayment is, 36×425 = $15300.

So, The total cash due at signing is, $15300 the monthly installments.

learn more about numerical expressions here :

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A two digit number is 4 times the sum and three times the product of its digits.Find the number .​

Answers

Answer:

24

Step-by-step explanation:

= 10x+y=4(x+y)

= 10x-4x=4y-y

= 6x=3y

(÷2) = (2x=y)----- eq.1

According to the quest:-

Case.2-- the number is also equal to 3 times the product of the digits.

10x+y=3xy

Substitute the value of y=2x in place of y.

We get, 10x+2x=(3x)(2x)

= 6x²-12x=0

= 6x(x-2)=0

= 6x=0 so, x=0 or x-2=0 so, x=2.

Consider eq.1:- 2x=y

= 2(2)=y so y=4

OR

= 2(0)=y so y=0

So we take x=2 and y=4

The number:- 10x+y

= 10(2)+4

= 24

Solve -4(x + 10) - 6 = -3(x - 2).

Answers

Answer:

-52 I think

Step-by-step explanation:

Im pretty sure...

The answer would be x=-52

(30 PTS + BRAINLIEST PLS HELP ME OUT) How many elements are in the factor set of p^m * q^n , where m, n ∈ W, and p and q both represent prime numbers?

Answers

Answer:

q=p^m q^n

Step-by-step explanation:

p^m*q^n=p^m*q^n

m= p^m q^n

n=p^m q^n

W=p^m q^n

p=p^m q^n

q=p^m q^n

I hope this helps!

With some species of bamboo, you can actually see them grow. You could observe 30 centimeters of growth in just
1
3
of a day. At what rate does this bamboo grow?

Answers

Answer:

90

Step-by-step explanation

Answer:

90

Step-by-step explanation:

Fill in the blanks to complete the steps of this word problem: Moby can use his jetpack to travel 240 miles in 4 hours. How far can he travel in 10 hours?

If d represents the distance Moby travels, one way to write a proportion for this situation is
?
/4=d/
?
. Using cross multiplication gives us a new equation:
4/d
=4d. The final step is to divide by
?
, which tells us that Moby can travel
?
600miles in 10 hours.

Answers

Answer:

ummmm

Step-by-step explanation:

4271

7645

9822

0378

which statement is true???
13/14>25/28
21/45<4/9
5/6>11/12
4/5<8/25

Answers

Answer:

none of them are true

Step-by-step explanation:

sorry NONE of them are true

Answer:

A: 13/14 > 25/18

Step-by-step explanation:

If its from edge quiz then A

Which comparison is not correct? |-7| > -9 |-2| |-9| -8 < |-4|

Answers

Answer:

The third one is the one that's not correct.

Step-by-step explanation:

|8| is just 8 but |-9| is 9. So in that case |8| is not greater than 9.

Answer: it is the first one

Step-by-step explanation: the third one is not correct cause it is obviously less than 9

Benford’s law states that the probability that a number in a set has a given leading digit, d, is
P(d) = log(d + 1) - log(d).

State which property you would use to rewrite the expression as a single logarithm, and rewrite the logarithm. What is the probability that the number 1 is the leading digit? Explain.

Answers

Answer:

Benford’s law states that the probability that a number in a set has a given leading digit, d, is

P(d) = log(d + 1) - log(d)  

The division property of logarithm should be use to make it as a single logarithm  

P(d) = log ( (d + 1)/ d)  

So the probability that the number 1 is the leading digit is

P(1) = log ( ( 1+1)/ 1)

P(1) = log ( 2)

P(1) = 0.301

Step-by-step explanation:

Answer:

Use the quotient property to rewrite the expression. Write the difference of logs as the quotient log((d+1)/d). Substitute 1 for d to get log(2).  Since log(2) = 0.30, the probability that the number 1 is the leading digit is about 30%.

Step-by-step explanation:

got in right on edge 2020

A swimmer dives to 65 feet below the surface of the ocean. Write the integer that represents the depth of the dive.

Answers

Answer:

-65 i believe

Step-by-step explanation:

What is the side length of a rectangular prism with a volume of 8 ft3?

Answers

Answer:

The side length of the rectangular prism is 2 feet

Step-by-step explanation:

The volume of the rectangle prism = L × W × H, where

L is its lengthW is its widthH is its height

If the 3 dimensions of the rectangular prism are equal, then its

volume = L × L × L =

In the question

∵ The rectangular prism has a volume = 8 ft³

∵ The question asks for its side length

→ That means all dimensions are equal

∴ V = L³

→ Substitute V by 8

∴ 8 = L³

→ Take cube root for both sides

∴ ∛8 = ∛(L³)

∴ 2 = L

∴ L = 2 ft

The side length of the rectangular prism is 2 feet

5. The mean age (at inauguration) of all U.S. Presidents is approximately Normally distributed with a mean
of 54.6. Barack Obama was 47 when he was inaugurated, which is the 119 percentile of the distribution.
George Washington was 57. What percentile was he in?
(A) 6.17
(B) 65.17
(C) 62.92
(D) 34.83
(E) 38.9

Answers

B. 65.17

it should be correct, sorry if i'm wrong. hope this helps!

Label the endpoints to round 49.672 to the nearest hundredth

Answers

Answer:

49.67 , you're welcome !

The round-off of the decimal number nearest to the hundredth is 49.67.

What is a round-off?

When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. For entire numbers as well as decimals at different places of hundreds, tens, tenths, etc., it is done.

The accepted method for representing both integer and non-integer numbers is the decimal numeral system. Decimal notation is the term used to describe the method of representing numbers in the decimal system.

The given number is 49.672 will be rounded off as below:-

49.672 = 49.67

Therefore, the round-off of the decimal number nearest to the hundredth is 49.67.

To know more about rounding-off numbers follow

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Give standard form for 1,000,000+80,000+30+3

Answers

Answer:

1,080,033

Step-by-step explanation:

Using the GCF what is the factored form of 18 F -45

Answers

Answer:

9(2f-5)

Step-by-step explanation:

the gcf of 18 and 45 is 9, so you divide 18 and 45 by it.

Solve the system by substitution.
y = -8x – 49
y = -1

Answers

Answer:

-6

Step-by-step explanation:

I think it might be

You add 49 to -1 which is 48 so Y is now 48 and then you would have 48=-8x which is 6

There are 2 grams of fat in 1 pound of chicken. there are 9 grams of fat in 4.5 pounds of chicken. How many grams of fat would be in 10 pounds of chicken?

Answers

Answer:

There will be 20 grams of fat in 10 pounds of chicken.

Step-by-step explanation:

Based of the pattern you can tell that the Grams of fat will always be double the amount of pounds.

2 grams of fat in 1 pound

9 grams in 4.5 pounds

So:

10 * 2 = Grams of fat

10 * 2 = 20 Grams of fat.

So there will be 20 grams of fat in 10 pounds of chicken.

PLEASSSSSSSSSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Shirley thought there were 25 students in her math class, but there were actually 27 students. What is her percent error?

Answers

27-25=2

so her absolute error was 2 students

divide the answer by 100 to get the percentage error.

percentage error = absolute error/ 100

2/100=0.02%

therefore her percentage error is 0.02%.

what number is 3.75i+7

Answers

Answer:

7+3.75i

Step-by-step explanation:

Answer:

It's a complex and imaginary number

Step-by-step explanation:

Because complex numbers always appear in the form (a + bi)

Write the equation of the line graphed below​

Answers

y = -3 is gonna be your answer

if a train travels 255 miles in 3 hours, how far will the train travel in 5 hours at the same rate?​

Answers

1125miles in 5 hours

Find the range of the function
g(x) = 5 + / 4 - x​

Answers

Answer:

The range of g(x) is [5, ∞) ⇒ (a)

Step-by-step explanation:

The range of the function is the values of y which corresponding to the values of x (domain)

∵ [tex]g(x)=5+\sqrt{4-x}[/tex]

∵ There is no square root for negative values

∴ 4 - x ≥ 0

→ Add x to both sides

∴ 4 - x + x ≥ 0 + x

∴ 4 ≥ x

→ that means x is smaller than or equal to 4

∴ x ≤ 4

→ The greatest value of x = 4

The domain of g(x) = {x : x ≤ 4} ⇒ (-∞, 4]

→ At x = 4

∵ g(4) = 5 + [tex]\sqrt{4-4}[/tex]

∴ g(4) = 5 + 0

∴ g(4) = 5

→ That means the smallest value of y = 5 because  [tex]\sqrt{4-x}[/tex] is always

   give a positive value which add to 5

The range of g(x) is {y : y ≥ 5} ⇒ [5, ∞)

The right answer is (a)

There are supposed to be biscuits in a frozen package, but there could be as many extra or fewer in each bag, depending on the weight of the biscuits.
Solving the equality will give the highest and lowest amounts of biscuits in the bag.

Answers

Answer:

See Explanation

Step-by-step explanation:

The question has missing details.

However, I'll make the following assumptions:

[tex]Biscuits = 20[/tex]

[tex]Difference = 2[/tex] (Fewer/Extra)

To solve your question, simply change the numbers

Required

Determine the range of the biscuits

To calculate the number of minimum biscuits, we have:

[tex]Minimum = Biscuits - Difference[/tex]

[tex]Minimum = 20 - 2[/tex]

[tex]Minimum = 18[/tex]

To calculate the number of maximum biscuits, we have:

[tex]Maximum = Biscuits + Difference[/tex]

[tex]Maximum = 20 + 2[/tex]

[tex]Maximum = 22[/tex]

The scores of the quizzes of five students in both English and Science are:

English Science

Student 1 6 8

Student 2 5 5

Student 3 9 6

Student 4 4 7

Student 5 8 9

For English, the mean is 6.4 and the standard deviation is 2.0. For Science, the mean is 7 and the standard deviation is 1.6. Using the formula below or Excel, find the correlation coefficient, r, for this set of scores. Answer choices are rounded to the nearest hundredth. ram-izlet 0

a) 0.23

b) 0.05

c) 0.50

d) 0.42

Answers

Answer:

0.23

Step-by-step explanation:

Given the data:

____(x) __(y)__(x - m1) /s1 ___(y-m2) /s2

1 ___6 ___8__ - 0.2 _______0.625

2 __5 ___ 5__ - 0.7________ - 1.25

3 __9____6__ 1.3 ________ - 0.625

4__ 4____ 7__ - 1.2 ______ 0

5__ 8 ____9 _ 0.8 _______ 1.25

For English :

Mean score(m1) = 6.4

Standard deviation (s1) = 2.0

For Science :

Mean score (m2) = 7.0

Standard deviation (s2) = 1.6

n = number of observations = 5

Correlation Coefficient (r) :

r = 1/(n - 1) Σ[((X - m1) / s1) * ((Y - m2) /s2)]

(-0. 2 * 0.625) + (-0.7 * - 1.25) + (1.3 * - 0.625) + (-1.2 * 0) + (0.8 * 1.25) = 0.9375

r = 0.9375/(5-1)

= 0.234

= 0.23

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