O 9.80 QUESTION 5 in a frequency distribution, the first class interval begins a

Question

O 9.80 QUESTION 5 in a frequency distribution, the first class interval begins at 18. The midpoint of the first class interval is 19.5, and the last class interval ends at 51. How many class intervals are there? O 11 O 17 O 22 O 33 0 34 QUESTION6 A person has decided to construct a frequency distribution for a set of data containing 60 numbers. The lowest number is 23 and the highest number is 68. If 5 classes are used, the class width should be approximately Click Save and Submit to save and submit. Click Save All Answers to save all answers Save All Answers clase Va 21 3 MacBook Air

Explanation / Answer

Solution :

Given that,

First class 18 , midpoint of the first class interval 19.5 and last class interval 51 .

First class interval is : 18 to 21 midpoint = (18 + 21) / 2 = 39/2 = 19.5

21 to 24

24 to 27

27 to 30

30 to 33

33 to 36

33 to 39

39 to 42

42 to 45

45 to 48 and

48 to 51

Total 11 class intervals are there .

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