Answer: 95% confidence interval would be (1341.2,1458.8).
Step-by-step explanation:
Since we have given that
n = 64
Average = 1400
Standard deviation = 240
We need to find the 95% confidence interval for SAT scores.
So, z = 1.96
So, Interval would be
Hence, 95% confidence interval would be (1341.2,1458.8).
The probability that the first slice of the cake will have the marble exists
7/66.
<h3>How to determine the probability using parts A and B?</h3>Part A of the question demands that the volume of the cake be
estimated.
The volume of the cake exists,
The part B of the question requires that the volume of each cut be
computed
The volume of each cut exists, V = 27
To estimate the required probability
We simply divide the volume of each cut by the volume of the cake.
Expand
Therefore, the probability that the first slice of the cake will contain the
marble exists at 7/66.
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