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Sonbull [250]
3 years ago
9

Thanks for not helping me...

Mathematics
1 answer:
kogti [31]3 years ago
6 0

Answer:

Whats up

Step-by-step explanation:

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The weight of football players is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds,What perc
soldier1979 [14.2K]

Answer:

57.62% of players weigh between 180 and 220 pounds

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 200, \sigma = 25

What percent of players weigh between 180 and 220 pounds

We have to find the pvalue of Z when X = 220 subtracted by the pvalue of Z when X = 180.

X = 220

Z = \frac{X - \mu}{\sigma}

Z = \frac{220 - 200}{25}

Z = 0.8

Z = 0.8 has a pvalue of 0.7881

X = 180

Z = \frac{X - \mu}{\sigma}

Z = \frac{180 - 200}{25}

Z = -0.8

Z = -0.8 has a pvalue of 0.2119

0.7881 - 0.2119 = 0.5762

57.62% of players weigh between 180 and 220 pounds

4 0
3 years ago
Which equation represents the line that passes through points (1, -5) and (3,-17)
zvonat [6]

Answer:

A) y=-6x+1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-17-(-5))/(3-1)

m=(-17+5)/2

m=-12/2

m=-6

y-y1=m(x-x1)

y-(-5)=-6(x-1)

y+5=-6(x-1)

y=-6x+6-5

y=-6x+1

8 0
3 years ago
Helpp me pleasee ╹◡╹
ivanzaharov [21]

Answer:

y=4x

Step-by-step explanation:

X would be the blue and the 4 represents the number of which each blue is increased by.

4(1)=4

4(2)=8

4(3)=12

4(4)=16

4(5)=20

and so on

hope this helped

7 0
3 years ago
874×1 = <br> 874×10 = <br> 874×100 = <br> 874×1,000 =
PtichkaEL [24]

Answer:

874×1 = 874

874×10 = 8,740

874×100 = 87,400

874×1,000 = 874,000

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1) A computer is on sale for 15% off the regular price of $799.
Leviafan [203]

Answer:

Here u go

Step-by-step explanation:

1. 15/100 × $799 = $119.85

2. $799 - $119.85 = $679.15

5 0
3 years ago
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