10 stat questions
Using the standard normal distribution table, compute the following probabilities:
P( Z ≥ 1.82)
1).4938
2).0344
3).4641
4).0062
Using the standard normal distribution table, compute the following probabilities:
P(Z ≤ 1.5) is:
1).9599
2).9938
3).8750
4).9332
Using the standard normal distribution table, compute the following probabilities:
P(1.34 ≤ Z ≤ 2.72) is:
1).0309
2).0476
3).8746
4).0868
Using the standard normal distribution table, compute the following probabilities:
P(Z ≤ 0) is:
The IQs in a particular college are normally distributed with mean μ = 125 and standard deviation σ = 10. Determine the percentage of student with IQs.
Below 115
The IQs in a particular college are normally distributed with mean μ = 125 and standard deviation σ = 10. Determine the percentage of student with IQs.
Above 125
The IQs in a particular college are normally distributed with mean μ = 125 and standard deviation σ = 10. Determine the percentage of student with IQs.
Between 123 and 130
The IQs in a particular college are normally distributed with mean μ = 125 and standard deviation σ = 10. Determine the percentage of student with IQs.
Between 125 and 135
Use the normal distribution table to find Z0 for which:
P(Z ≤ Z0) = .9192 thus Z0 is:
Use the normal distribution table to find Z0 for which:
P(-Z0 ≤ Z ≤ Z0) = .9844 thus ± Z0 is: