A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that 21% of the observations lie below it? Round your answer to the nearest tenth

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A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that 21% of the observations lie below it? Round your answer to the nearest tenth

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Step 1

The given information is that the scores distributed normally with mean 10 and variance is 49. The standard deviation for the scores is 10. The random variable X denotes the observations. Given that the observations below the value x is 21%.

Step 2

Using Z table for finding the inverse cumulative function:

Step 3

From the Z tabl...

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