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O descriptive O inferential D Question 2 1 pts Table below shows example of frequency and relative-frequency distribution. Relative Interval Frequency f 22-29 30-39 40-49 50-59 Total frequency 0.16 4 6 0.24 0.40 0.20 1.00 5 Find missing frequency for interval 40-49. O 8 O 10 O 12 O 15
Question 9 1 p Calculate sample variance for the following data collection: 10, 25, 28, 35 (when you calculate variance, divide by N-1 not by N) O 85 O 150 O 180
DQuestion 9 1 pts Calculate sample variance for the following data collection: 10, 25, 28, 35 (when you calculate variance, divide by N-1 not by O 85 O 150 180 1 pts Question 10
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Answer #1

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2. the frequency of 4 is a relative frequency of .16

so, if 4 is k*.16...1
So, ? = k*.40.........2

Divide 1 and 2,

(4/?) = k*.16/k*40
4/? = 1/2.5
? = 10

So, the missing frequency is 10

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