Probability values based on normal distribution

Reference no: EM1322592

Probability values based on normal distribution.

The old exit exam followed a normal distribution with µ = 500 and σ = 10. On this exam, Jessica's score was 523. On the new exit exam, with results following a normal distribution with µ = 600 and σ = 20, Jessica made a 644. On which exam did she do better relative to her peers?

a) The old exam, on which she was 2.3 σs above the mean as opposed to 2.2 on the new exam.

b) The old exam when she scored higher than 2.3% of her peers as opposed to 2.2% on the new exam.

c) The new exam because she scored higher than 1.2% of her peers as opposed to 1.1% on the old exam.

d) The new exam, since 644 is higher than 521.

e) None of the above

Reference no: EM1322592

Questions Cloud

What is the direction of the chickens acceleration : An ocean liner leaves New York City and travels 13° north of east for 268 km. How far east and how far north has it gone? In other words, what are magnitudes of the components of the ship's displacement vector in the following directions.

At what location on x-axis is the electric field zero : A hotel elevator ascends 170 {rm m} with a maximum speed of 5.90 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.3 {rm m/s^2}.

Owner respective territories : Freezo would not sell its refrigerators at retail in the store owners' respective territories. Are these agreements valid and why or why not?

Is binomial distribution suitable for normal approximation : Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.

Probability values based on normal distribution : Probability values based on normal distribution - old exit exam followed a normal distribution

When the airport sends out a rescue crew : A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.

New zealander company-case study : Assume that you work for a New Zealander company exporting a container of kiwis to Azerbaijan or Haiti. The customs official informs you that there is a delay in clearing your container through customs, and it may last a month

Probability value for given data using normal approximation : Finding the probability value for the given data using normal approximation

What is the maximum average speed of train : A basketball player grabbing a rebound jumps 70.80 cm perpendicularly. How much total time (ascent and descent) does the player spend (a) in the top 11.2 cm of this jump and (b) in the bottom 11.20 cm? Do your results describe why such players see..

User Account

All Pages