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4 years ago

Use the following table to answer each question.

Mathematics

1 answer:

seropon [69]4 years ago

3 0

Answer:

$47.33
$43
$50.25

Step-by-step explanation:

Using table calculating the mean for each case

1. Entire year, sample size 12

x = 1/12* ∑ xi, i= 1 to 12
x = 1/12(40+42+40+38+48+50+58+62+56+46+44+44)
x = 1/12*568 = $47.33

2. First six months, sample size 6

x = 1/6*∑ xi, i= 1 to 6
x = 1/6(40+42+40+38+48+50)
x = 1/6*258 = $43

3. April through November, sample size 8

x = 1/8*∑ xi, i= 4 to 11
x = 1/8(38+48+50+58+62+56+46+44)
x = 1/8*402 = $50.25

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