7. p=0.4
i dont know about 3
or 6
The answer is 94
Use Math Way as a place to solve a question like this
To do that you'll need the mean and standard deviation of all the scores. Can you provide this info?
For example: Supposing that the mean of these scores were 52 and the standard deviation 3. You'd need to find the "z-score" of 57 in this case.
57 - 52
It is z = ------------ , or z = 5/3, or z = 1.67.
3
Find the area to the left of z = 1.67. Multiply that area by 100% to find the percentile rank of the score 57.
Answer:
= 0.1165
Step-by-step explanation:
In statistics, binomial distribution table are ones in which one of two outcomes may result. Given the number of trials in an experiment ''n'', you can use these binomial distribution tables to look up the probability of a certain number of successes in the whole experiment.
P=14% = 0.14, n=30
Here we can use binomial distribution use binomial cumulative tables
Then P(More than 7) = P(x>7)
= 1 - P(x < 7)
= 1 - P(x ≤ 6)
= 1 - 0.8835
= 0.1165