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julia-pushkina [17]
3 years ago
13

PLZ HELP ASAP DUE TMR NEED RN TYSM

Mathematics
1 answer:
Degger [83]3 years ago
4 0

Answer:

b= 133º

c= 47º

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The answer is: 90 you can calculate this: 900/10=90
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What is the absolute deviation for 62 in the data set?
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0 is the answer! that is because 62 is also the mean.


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The number of subscribers y to a newspaper after t years is shown by the equation below: y = 75(0.95)t Which conclusion is corre
kodGreya [7K]

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  It decreased by 5% every year

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When t increases by 1, the number of subscribers is multiplied by another factor of 0.95, making the new value 5% less than the previous one.

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weqwewe [10]

Answer:

a) 0.6517; b) 0.9115; c) No

Step-by-step explanation:

For part a, we will use the formula for a z score of an individual:

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1-0.3483 = 0.6517

For part b, we will use the formula for a z score of the mean of a sample:

z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}\\\\=\frac{167-182.9}{40.8\div \sqrt{12}}\\\\=\frac{-15.9}{40.8\div 3.4641}\\\\=\frac{-15.9}{11.778}\approx -1.35

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1-0.0885 = 0.9115

For part c,

The fact that the probability that any 12 men on the elevator will have a mean weight greater than 167, putting their total weight above 2004 pounds, is 91% means the elevator does not have the appropriate limit.  There is a high chance the maximum will be exceeded.

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3 years ago
A scientist wants to test whether moon rock is made of the same elements as Earth rock. The scientist is testing a(n): Please ch
joja [24]

Answer:

Hypothesis

Step-by-step explanation:

The scientist want to test an hypothesis which can be stated has the rock on earth contain the same as the moon which can call null hypothesis and the rock on earth did not contain the same element as the moon; the alternate hypothesis and both hypothesis can be tested by using experiment.

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