8 Answered Questions for the topic Percentiles

05/23/19

#### I can't seem to work these problems...

The following numbers describe the length of time 50 students took to complete a particular exam. Minimum = 34 minutesMedian = 52 minutesMean = 61 minutesMaximum = 125 minutes Semara took 52...
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Percentiles

10/27/18

#### bell-shaped distribution

The mean price of new homes from a sample of houses is $155,000 with a standard deviation of $15,000.The data set has a bell-shaped distribution.Between what two prices do 95% of the houses fall?...
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Percentiles

04/06/18

#### Use the following data to calculate the percentage difference due to gender and comment

events (world record) 1975 1985 1995 2005
men's 100m 9.95s 9.93s 9.84s 9.77s
women's 100m ...
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06/06/15

#### Percentile Question!!

A random variable x has a normal distribution in the 50th percentile for x is 5. What is the mean of x?

03/31/15

#### Compute the Mean & Standard Deviation from percentile values of a distribution

I have been given values for 10%, 50% and 90% of a distribution. From these numbers, how can I compute the mean and standard deviation?
I'll give an example....Temperature distribution
10th...
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Percentiles

08/29/14

#### If a student scores a 54% and is in the 90th percentile, how well did the class do?

Need help answering this question:
If a student scores a 54% and is in the 90th percentile, how well did the class do?

03/19/13

#### Scores for an entry exam to a university...?

Scores for an entry exam to a university are normally distributed with a mean of 75 and a standard deviation of 6.5:
a) If the top 5% are admitted with a full scholarship, what is the lowest score...
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