Mathematics: B. six packages had weights of 2 lb, 5 lb, 7 lb, 5 lb, 9 lb, and 8 lb. what’s the average weight of the packages?

B. six packages had weights of 2 lb, 5 lb, 7

Ответ:

victoriadenning1

30.12.2021

Mathematics

6 lb

Step-by-step explanation:

The formula to calculate the average of n elements

X_1, X_2, X_3, X_4,..., X_n is:

${\overline {X}}}=\frac{\sum_{n=1}^{n}X_n}{n$

In this case we have the weight of six packages

2 lb, 5 lb, 7 lb, 5 lb, 9 lb, and 8 lb

Notice that n = 6

So the average weight is:

${\overline {X}}}=\frac{2+5+7+5+9+8}{6$

${\overline {X}}}=\frac{36}{6$

Finally the average weight of the packages is:

${\displaystyle {\overline {X}}}=6\ lb$

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Ответ:

fluffy37

04.07.2021

Mathematics

The IQR of the first period is 15. The IQR of the third period is 1/3 that, 5*(1/3) is equal to 5.

For the third period, Q1 is 78. The expression for Q3 is Q1+IQR

Therefore, 78+5 = 83

Q3 of the third period is 83

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B. six packages had weights of 2 lb, 5 lb, 7 lb, 5 lb, 9 lb, and 8 lb. what’s the average weight of the packages?

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