3 years ago

What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?

Mathematics

1 answer:

Dvinal [7]3 years ago

6 0

Answer:

7.36

Step-by-step explanation:

z-score is:

z = (x − μ) / σ

Given that z = -1.63, x = 23, and μ = 35:

-1.63 = (23 − 35) / σ

σ ≈ 7.36

You might be interested in

The temperature was 8℉. It dropped so that the temperature was 0℉. What integer represents the change in temperature?

antiseptic1488 [7]

Answer:

-8

Step-by-step explanation:

The temperature dropped 8 degree, resulting in a negative change. So the integer to represent it would be negative 8 degrees.

4 0

4 years ago

How did you decide which make a ten fact to use? Explain

s2008m [1.1K]

If you are asking when you divide ten into a number, remember this, anything that ends with a 0, it is divisible by 10.

8 0

3 years ago

Three-fourths divided by 2 is?

Mariana [72]

Answer: i think 1/4

Step-by-step explanation: maybe i might be incorrect

3 0

3 years ago

Read 2 more answers

What is the relationship between the lines with the following equations? 2x+8y=16 y=4x+7

dimulka [17.4K]

They are perpendicular because when you change 2x+8y=16 to slope intercept form it becomes y= -1/4x+2 and the slope (-1/4) is the negative reciprocal of 4, which is the slope for your other equation.

Please comment if you have any questions :)

6 0

4 years ago

Which pairs of faces will be opposite one another when the prism is created? Check all that apply.

blondinia [14]

A&C
B&F
Try it by fold the prism with paper

7 0

4 years ago

Read 2 more answers