On average, Upstate Chevrolet sells 20 cars each week, with a standard deviation of 2.

How many cars sold represents 2 standard deviations above the mean?

How many cars sold represents 1 standard deviation below the mean?

Approximately 68% will fall between __ and __

Approximately 99.7% will fall between __ and __

What is the probability that the car lot will sell at least 18 cars? __%

What is the probability that a car lot will sell at most 26 cars?__%

Answer:

first question is 10 other question it doesn't sound right to me

The answers to the blanks are as follows:

1) 18 and 22

2) 14 and 26

3) 84%

4) 99.85%

'The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.'

According to the given problem,

Number of cars sold each week = 20

Standard deviation = 2

= 20 + (2*2)

= 18

68% : 18 and 22

99.7% : 14 and 26

P( x ≥ 18 ) = 50% + [tex]\frac{0.68}{2}[/tex]

                = 84%

P( x ≤ 26 ) = 1 - [tex]\frac{(1 - 0.99)}{2}[/tex]

                 = 99.85%

Hence, we can conclude that 68% will fall between 18 and 22 and 99.7% will fall between 14 and 26. We also concluded that the car lot will sell at least 18 cars is 84% and that they will sell at least 26 cars is 99.85%.

Learn more about statistics and standard deviation here: https://brainly.com/question/13142606

#SPJ2

someone please help me rn omg
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
The average daily maximum temperature in Syracuse is 21.85°C, and the average daily minimum temperature is -4.7°C. The average daily maximum temperature is
°C higher than the average daily minimum temperature.

NEED HELP ASAP DUE IN A FEW MINUTES!
The following is a recipe for Gazpacho, a cold vegetable soup. Write how much of each item in the recipe you would need to serve 10 people, assuming each would eat one serving


Yield: 4 servings


1 ½ lbs of fresh tomatoes


1 c peeled, chopped cucumber


½ c chopped red bell pepper


½ c chopped red onion


1 small jalapeno


1 garlic clove


¼ c olive oil


1 lime, juiced


2 tsp balsamic vinegar


2 tsp Worcestershire sauce


½ tsp cumin


1 tsp salt


¼ tsp black pepper


2 Tsp basil

A car dealership paid $9,000 for a car. Here is the sticker price for a customer to buy the car.

Why are they charging $10,395

1.sales tax

2.markup

3.interest

4.tip

5.mark down(discount)

6.commission

Need help so baddddd

Need help ASAP !!! 20 pointsss

IMPORTANT PLEASE HELP WILL GIVE BRAINLIEST

Badminton Question

In the figure, square ABCD has side length 6 feet, and E is a point in the exterior of the square such that triangle ADE is equilateral. How many square feet are in the area of shaded triangle BEC? Express your answer as a decimal to the nearest tenth.

SHOW WORKING FOR BRAINLIEST

Put these fractions in order from greatest to least:3/4 ,3/5 ,2/3 .

The graph models the linear relationship between the temperature of Earth's atmosphere and the altitude above sea level. Earth's Atmosphere Which of these best represents the rate of change of the temperature with respect to altitude? -6.5°C/km -3.5°C/km -0.29°C/km -0.15°C/km​

Plsss help with this math!!!! i will give brainliestt the the correct explained answer!

Which is the prime factorization of 42?
2 x 3 x 7
3 x 14
3 x 3 x 7
2 x 2 x 5

Please answer this for me!!!

solve for x: x - 1 = 4x + x - 8 + 3x

John and his three brothers share a cell phone plan. The cell phone company charges a flat rate of $90 per month, which the four brothers share equally. In addition, the cell phone company charges 25 cents per megabyte of data downloaded. Each brother pays for his own downloaded data.
John's share of the current cell phone bill is $147.50.

Which equation determines how many megabytes of data John downloaded?

A. 90+0.25x = 147.50
B. 90x+0.25 = 147.50
C. 22.5+0.25x = 147.50
D. 22.5x+0.25 = 147.50​

solve for x: 1/2x + 4 = 9

Write the equation of the line that passes through the points (1, 7) and (5, 15) using function notation.

Mary is planning a party for her brother. She has 36 prizes and 24 balloons. What is the greatest number of children who can attend the party so that each child gets an equal number of prizes and an equal number of balloons?How many prizes and balloons will each child get at the party?Solve the problem using the Distributive Property. Write the equation and show how distributive property was used, along with your final answer

Identify the numbered parts and determine if this is a plant or animal cell. i have already done #9

The Mississippi River is 1,171 miles long. The Ohio River is 981 miles long. How much longer is the Mississippi River? Explain how you got your answer.

A system of equations is graphed on a coordinate plane.



Which coordinates are the best estimate of the solution to the system of equations?

(−1, 0)
(−1, −1)
​(1, 0)​
​(1, −1)

Easy please answer will give brainlist.

In slope-intercept form, write the equation of the line that passes through points (6, -1) and (3, -4).

Use an algebraic approach and show your work in order to earn full credit.

A car traveled 35 miles in 2 hours. At this rate, how many miles will the car travel in ½ hour?

In slope-intercept form, write the equation of the line that passes through points (-7, 8) and (2, -2).

Use an algebraic approach and show your work in order to earn full credit.

Fill in the missing parts:
5/7 of ... is 1/7


Please help I really don't get it

Please help me with this promblem!

Your state lottery is offering a choice of pay out options with the next Powerball drawing. Winners of the Powerball can choose between 1 billion dollars or they may choose to start with $2 on day one, double it the next day to $4, double it again the third day to $8, and so on for a term of 30 days.

a) Create a chart to help you find a pattern in the second payout option then write a formula.

b) Which payout option would you choose? Show all your calculations and explain which choice you would make.

c) How much money would you have if the term was 45 days? Express your answer in both standard and scientific notation.

3/9 - (-1/9) =
Does this seem right?:
3/9+1/9= 4/9

Several students measured a 25-mm-long nail and wrote the measurements shown in the table below. Whose measurement had the greatest percent error? Round to the nearest percent. (I need help ASAP!! Thanks!! <3)

Which of the following quotients are equivalent to 1.5​? Select all that apply. A. 9/6 B. -3/-2 C. -9/6 D. 3/2 E. 9/-6 F. -3/2