. In a distribution with a mean of 100 and a standard deviation of 15, what is the probability that a score will be 115 or higher? Show all the steps of the calculation in Excel.
a. 16%
b. 34%
c. 50%
d. 84%
I know the answer is A., I know the porb of >1 is 1.5866, but I dont know how to show this in excell, and im not really sure what im doing with that extra yellow box :/


. In a distribution with a mean of 100 and a standard deviation of 15, what...
IQ scores have a population mean of 100, a population standard deviation of 15, and are approximately Normally distributed. Use one of the StatCrunch outputs below to find the probability that a randomly selected person will have an IQ of 75 or above. State whether Figure (A) or Figure (B) is the correct representation of a person with an IQ of 75 or above. "use figure B to find the probability" Figure A Mean 100 std dev 15 prob (X<=...
In the state of Kentucky, the mean SAT math score is 600 with standard deviation 75. A school system in Smithville decides to study if their scores are statistically less than the state. They gather data from 51 students in their district. Mean 536.72549 Std Dev 33.670805 Std Err Mean 4.7148558 Upper 95% Mean 546.19556 Lower 95% Mean 527.25542 N 51 Hypothesized Value 600 Actual Estimate 536.725 DF 50 Std Dev 33.6708 Sigma given 75 z Test Test Statistic -6.0249...
1. If the mean of a distribution is 100 with a standard deviation of 10, what z-score is associated with a raw score of X=90? 2. If the mean of a distribution is 100 with a standard deviation of 10, what raw score is associated with a z-score of +2.003. 3. Using the z-score formula, if you have a distribution with a mean of 50 and a standard deviation of 5, what z-score is associated with a raw score of...
The mean IQ score of adults is 100 , with a standard deviation of 15 . Use the Empirical Rule to find the percentage of adults with scores between 85 and 115 . (Assume the data set has a bell-shaped distribution
A distribution of scores has a mean of ?=100 and a standard deviation of ?=10. For an x value of 140, calculate the corresponding z-score.Can you also interpret what the z-score of x means (x=140)?
Gifted cutoff score is 130. IQ mean is 100, Standard deviation is 15. If I barely made the cut, what is my Z-score?
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1. The typical IQ test is designed with a mean of 100 and standard deviation of 15. Find Z score corresponding to IQ score of 128 (4 points) Z=
1. The typical IQ test is designed with a mean of 100 and standard deviation of 15. Find Z score corresponding to IQ score of 128 (4 points) Z=
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