Answer:
2.5
Step-by-step explanation:
its a decimal
8/21 is the answer to the question
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Answer:
.
Step-by-step explanation:
The z-score for a normal distribution is calculated using the formula:
.
From the question, the distribution has a mean of 50.
and the standard deviation is
.
For a z-score to be negative, then,
.
.
.
.
.
.
Any value less than 50 will produce a negative z-score