Question

10 Data from the past 100 years show that rainfall during April varies randomly from day to day. Over that period the mean amount in the month has been 60 cm, with no noticeable upward or downward trend. By 20th April this year, 30 cm of rain had fallen. The total amount expected in the month is thus: A. 30 cm B. 40 cm C. 50 cm D. 60 cm

          10 Data from the past 100 years show that rainfall during April
varies randomly from day to day. Over that period the mean
amount in the month has been 60 cm, with no noticeable
upward or downward trend. By 20th April this year, 30 cm of rain
had fallen. The total amount expected in the month is thus:
A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm

10 Data from the past 100 years show that rainfall during April
varies randomly from day to day. Over that period the mean
amount in the month has been 60 cm, with no noticeable
upward or downward trend. By 20th April this year, 30 cm of rain
had fallen. The total amount expected in the month is thus:
A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm

Added by Kathy C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Prabhakar Kumar

01/20/2024

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Step 1: The question states that the average rainfall in April over the past 100 years is 60 cm. Show more…

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10 Data from the past 100 years show that rainfall during April varies randomly from day to day. Over that period the mean amount in the month has been 60 cm, with no noticeable upward or downward trend. By 20th April this year, 30 cm of rain had fallen. The total amount expected in the month is thus: A. 30 cm B. 40 cm C. 50 cm D. 60 cm