At the most recent acceleration survival track meet, Jinwhye\'s obtained the fol
ID: 3125431 • Letter: A
Question
At the most recent acceleration survival track meet, Jinwhye's obtained the following z-scores:
whiplash knot: z = 1.58
dead-end dive: z = -0.74
What was Jinwhye's percentile rank for the dead-end dive? Express your answer to the nearest whole number.
At the most recent acceleration survival track meet, Jinwhye's obtained the following z-scores:
whiplash knot: z = 1.26
dead-end dive: z = -0.41
What was Jinwhye's percentile rank for the dead-end dive? Express your answer to the nearest whole number.
Find the score that is greater than 90% of all other scores in a normal distribution with a mean of 400 and a standard deviation of 50?
A normal distribution has a mean of 400 and a standard deviation of 50, what is the probability (as a percent) of randomly selecting a score between the MEAN and a score of 487?
In a normally-distributed variable measured at the interval/ratio level, approximately what portion of scores will fall between the mean and one standard deviation below the mean?
2/3
1/3
1/2
1/4
To determine the probability of rolling a "2" and a "6" with two dice, we would employ the:
converse rule
proportionality rule
multiplication rule
addition rule
2/3
1/3
1/2
1/4
Explanation / Answer
From the z score table find the corresponding z score for -0.74 which is 0.2296.
Subtract it from 1.00 for the percentile: 1-0.2296=0.7704
Thus, inwhye's percentile rank for the dead-end dive is 77.04 th percentile.
From the z score table find the corresponding z score for -0.41 which is 0.3409.
Subtract it from 1.00 for the percentile: 1-0.3409=0.6591
Thus, inwhye's percentile rank for the dead-end dive is 65.91 th percentile.
In a normally-distributed variable measured at the interval/ratio level, approximately 1/3 rd portion of scores will fall between the mean and one standard deviation below the mean.
To determine the probability of rolling a "2" and a "6" with two dice, we would employ the: addition rule.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.