Answer:
And the deviation would be:
Step-by-step explanation:
For this case we have the following distribution given:
X 0 1 2 3 4 5 6
P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02
For this case we need to find first the expected value given by:
And replacing we got:
Now we can find the second moment given by:
And replacing we got:
And the variance would be given by:
And the deviation would be:
Step-by-step explanation:
the answer is in the above image
Answer: Most likely 13cm
Step-by-step explanation: <em>because it’s between 10cm and 16cm and thes no picture and set of choices so I hope this right.</em>
12 inches would be a precise measurement.
Answer:
260 is the minimum score.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 200
Standard Deviation, σ = 24
We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.
Least marks required for admission in boarding school is 2.5 standard deviations above the mean.
Thus, we can calculate the minimum score as:
Thus, 260 is the minimum score that an applicant must make on the test to be accepted.