Question

This list shows how many hours twenty batteries lasted when they ran continually in a flashlight.

Answer 1

Answer:

this is the answer.

I hope it will be helpful to you

Step-by-step explanation:

option b

Answer 2

Mean = 46.85  , Median = 47  , Modes 10 , 47 & 93

Step-by-step explanation:

arranging data in ascending order

10 , 10 , 13 ,  16 , 22 , 30 , 31  ,40 , 46 , 47 ,   47  ,   51 , 58 , 60 , 63 , 64 , 65 , 78   , 93 , 93

20 Terms  so median will be ( 10th + 11 th term)/2

= (47 + 47)/2

= 47

Mode  Multi mode

10 , 47 , 93  repeated maximum time twice

Mean = 937 / 20 = 46.85

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