Simplify.13+(49−19)2

Enter your answer, as a simplified fraction, in the box.

Answers

Answer 1

Answer: Simplified :13+[2(10)]
13+20
Answer : 33

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Assume that women's heights are normally distributed with a mean given by u = 64.3 in, and a standard deviation given by 0 = 2.7 in. (a) f 1 woman is randomly selected, find the probability that her height is less than 65 in. (b) if 43 women are randomly selected, find the probability that they have a mean heightless than 65 in. (a) The probability is approximately I. (Round to four decimal places as needed.) 4

A supervisor finds the mean number of miles that the employees in a department live from work. Which mileage is within a z-score of 1.5? A. 21 miles B. 24 miles C. 36 miles D. 41 miles

Answers

The z-score tells you how many standard deviations from the mean.

1.5 * 3.6 = 5.4 miles

So anything within 5.4 miles of the average (29).

The range would be:
29 - 5.4 = 23.6
to:
29 + 5.4 = 34.4

23.6 ≤ x ≤ 34.4

Answer:
B) 24 miles

The mileage is within a z-score of 1.5 is (b) 24 miles

How to determine the mileage?

From the complete question, we have the following parameters:

Standard deviation = 3.6

Mean = 18.6

z = 1.5

The z-score is calculated using:

$z= (x - \mu)/(\sigma)$

So, we have:

$1.5= (x - \mu)/(\sigma)$

Cross multiply

$x - \mu= 1.5\sigma$

Make x the subject

$x = 1.5\sigma + \mu$

Substitute known values

$x = 1.5 * 3.6 + 18.6$

Evaluate

x = 24

Hence, the mileage is within a z-score of 1.5 is (b) 24 miles

Answers

B.

This is because, the people who conduct the survey and came to the conclusion of B are making an assumption that they are too busy. This is biased because from the point of view of THEM or even the education board, this could be manipulated in such a way that is not factual.

So in a nutshell, B is bias because it is not 100% factual. Remember, it's all about perspective.

Divide £300 in a ration of 3:7 help please !

Answers

Divide it by 10 (3+7)
Multiply both sides of the ratio (3:7) by the result (300:10=30)
Left side of ration 3*30=90
Right 7*30=210

Thats gives us £90 and £210

How long is 74% of 60 min
A. 50
B. 35
C.45

Answers

Answer:

Its c

Step-by-step explanation:

Answer:

yes it is C

Step-by-step explanation:

A recent study investigated tractor skidding distances along aroad in a forest. The skidding distances (in meters) were measured
at 20 randomly selected road sites. The data are given in the
accompan