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densk [106]
3 years ago
7

The overhead reach distances of adult females are normally distributed with a mean of 202.5 and standard deviation of 8 cm. a. F

ind the probability that an individual distance is greater than 215.90 cm. b. Find the probability that the mean for 20 randomly selected distances is greater than 201.20 cm. c. Why can the normal distribution be used in part (b)even though the sample size does not exceed 30?
Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Answer:

HSDHJSDHJS

Step-by-step explanation:

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Help!!! ( look at the picture)
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Answer:

12

Step-by-step explanation:

Just add them lol

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2 years ago
You are running a concession stand at a basketball game. You are selling pretzels and sodas. Each pretzel costs $1.50 and each s
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There were 35 hotdogs and 52 sodas sold.

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2 years ago
the form ula for the area of a circle can be found by using a parallelogram. explain the way to derive the formula​
vladimir2022 [97]

Answer:

Explanation: As you make the segments smaller and smaller, the parallelogram becomes more of a rectangle with shorter side equal to the radius of the circle r and longer side πr - half of the circumference of the circle. Hence we get the formula πr2 for the area of a circle of radius r .

Step-by-step explanation:

4 0
2 years ago
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weeeeeb [17]

Answer:

wow thats mean

Step-by-step explanation:

7 0
3 years ago
There are two values of a for which the equation 5x2+ax+7x+5=0 has only one solution for x. What is the sum of those values of a
JulsSmile [24]

Answer:

-14

Step-by-step explanation:

First of all, we know that 5x^2+ ax+7x +5=0 only has one root. That means that b^2 - 4ac=0, and we can use this to find the discriminant, ax + 7x.

Now, if we simplified 5x^2+ ax+7x +5=0, by dividing it all by 5, it would be x^2+(a+7)/5x + 1 = 0.

After, we can plug what we know into the formula, b^2 - 4ac=0. It would be:

(a+7)^2 / 25 - 4 = 0

(a+7)^2 / 25 = 4

(a+7)^2 = 100

Since this is a square root, a+7 can be both negative or positive.

a+7= 10, or a+7 = -10

a=3, or a=-17

The question asks for the sum of a, which is 3 + (-17) = -14

Therefore, the answer is -14.

:) have fun with your rsm problems, assuming you got this from the portal.

7 0
3 years ago
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