Statistics and Probability Concepts

What is the mean height of men as mentioned in the video?

• 170 cm

• 178 cm

• 180 cm

• 175 cm

What is the standard deviation of women's height?

• 8 cm

• 10 cm

• 12 cm

• 6 cm

How is the random variable D defined?

• Ratio of M to W

• Product of M and W

• Difference between M and W

• Sum of M and W

What is the mean of the difference variable D?

• 0 cm

• 6 cm

• 10 cm

• 8 cm

How do you calculate the variance of the difference variable D?

• Divide the variances of M by W

• Multiply the variances of M and W

• Add the variances of M and W

• Subtract the variances of M and W

What is the standard deviation of the difference variable D?

• 8 cm

• 14 cm

• 10 cm

• 12 cm

What is the z-score for D when calculating the probability that a woman is taller than a man?

• -0.8

• 1.0

• -1.0

• 0.8

What is the probability that a woman is taller than a man?

• 0.212

• 0.312

• 0.112

• 0.412

Which function on a graphing calculator is used to find the cumulative distribution?

• Normal CDF

• Normal PDF

• Inverse Normal

• Standard Deviation

What is the equivalent of negative infinity on a calculator?

• 1 x 10^99

• 0

• -1

• -1 x 10^99