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Complete Question:
Femi's last 5 bowling scores were 68, 75, 72, 90, and 80. What was Femi's mean score?
Answer:
Step-by-step explanation:
Given
Scores: 68, 75, 72, 90, and 80
Required
Determine the mean
The mean (M) of a data is calculated as thus:
Where
n = number of data.
In this case,
n = 5
and
= sum of data
So, the formula becomes
<em>Hence, the mean is 77</em>
The z score that corresponds to a right tail area of 0.45 is given by
Therefore, the <span>approximate z-score that corresponds to a right tail area of 0.45 is</span> 0.126
Therefore, the <span>approximate z-score that corresponds to a right tail area of 0.45 is</span> 0.126