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3 years ago

How do u do this or explain whats going on in the problem

Mathematics

1 answer:

agasfer [191]3 years ago

6 0

Answer:

its just the congruency rules .

you had to explain them using the rules

Step-by-step explanation:

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3 years ago

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3 years ago

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MArishka [77]

There is no picture of a receipt to see.

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3 years ago

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The heights, in inches, of the starting five players on a college basketball team are 6868, 7373, 7777, 7575, and 8484. Co

LenKa [72]

Answer:

The sample standard deviation of 5.95.9 inches differs from the population standard deviation of 5.25.2 inches because of their formulas for calculating it.

Step-by-step explanation:

We are given the heights, in inches, of the starting five players on a college basketball team ;

68, 73, 77, 75 and 84

Now whether we treat this data as sample data or population data, the mean height would remain same in both case because the formula for calculating mean is given by ;

Mean = Sum of all data values ÷ No. of observations

Mean = ( 68 + 73 + 77 + 75 + 84 ) ÷ 5 = 75.4 inches

So, numerically, the sample mean of 75.4 inches is the same as the population mean.

Now, coming to standard deviation there will be difference in both sample and population standard deviation and that difference occurs due to their formulas;

Formula for sample standard deviation = $\frac{\sum (X_i - Xbar)^{2} }{n-1}$

where, $X_i$ = each data value

X bar = Mean of data

n = no. of observations

Sample standard deviation = $\frac{ (68 - 75.4)^{2} +(73 - 75.4)^{2}+(77- 75.4)^{2}+(75- 75.4)^{2}+(84 - 75.4)^{2} }{5-1}$

= 5.9 inches

Whereas, Population standard deviation = $\frac{\sum (X_i - Xbar)^{2} }{n}$

= $\frac{ (68 - 75.4)^{2} +(73 - 75.4)^{2}+(77- 75.4)^{2}+(75- 75.4)^{2}+(84 - 75.4)^{2} }{5}$ = 5.2 inches .

So, that's why sample standard deviation of 5.95.9 inches differs from the population standard deviation of 5.25.2 inches only because of formula.

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3 years ago

Explain two different squares that can be made using the number 9.

kkurt [141]

3 and 3 9 and 1 and there is more ways just see

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4 years ago

How do u do this or explain whats going on in the problem​

How do u do this or explain whats going on in the problem