PROBLEM:A certain AP® Statistics teacher is feeling generous one day and decides that each student deserves some extra credit. The teacher assigns each student a random extra credit value between 0 and 5 (decimals included) by using 5*and on the calculator. Let Y = amount of extra credit for a randomly selected student. The probability distribution of Y can be modeled by a uniform density curve on the interval from 0 to 5. Find the probability that a randomly selected student will get more than 3 points of extra credit.PROBLEM:The weights of 3-year-old females closely follow a Normal distribution with a mean of m 5 30.7 pounds and a standard deviation of 3.6 pounds. Suppose we randomly choose a 3-year-old female and call her weight X. What is the probability that she weighs at least 30pounds? ALTERNATE EXAMPLE (page 372)Extra creditContinuous random variablesMAXI TAKATIA(bsbe 254)LEPROBLEM:A certain AP® Statistics teacher is feeling generous one day and decides that each studentdeserves some extra credit. The teacher assigns each student a random extra credit valuebetween 0 and 5 (decimals included) by using 5*rand on the calculator.Let Y = amount of extra credit for a randomly selected student. The probability distributionof Y can be modeled by a uniform density curve on the interval from 0 to 5. Find theprobability that a randomly selected student will get more than 3 points of extra credit.%3Dwop does the probeblay distribeALTERNATE EXAMPLE (373)Weights of 3-year-old femalesNormal probability distributionsPROBLEM:The weights of 3-year-old females closely follow a Normal distribution with a mean of m 530.7 pounds and a standard deviation of 3.6 pounds. Suppose we randomly choose a 3-year-old female and call her weight X. What is the probability that she weighs at least 30pounds?

Answered: A certain AP® Statistics teacher is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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PROBLEM:

A certain AP® Statistics teacher is feeling generous one day and decides that each student deserves some extra credit. The teacher assigns each student a random extra credit value between 0 and 5 (decimals included) by using 5*and on the calculator. Let Y = amount of extra credit for a randomly selected student. The probability distribution of Y can be modeled by a uniform density curve on the interval from 0 to 5. Find the probability that a randomly selected student will get more than 3 points of extra credit.

PROBLEM:

The weights of 3-year-old females closely follow a Normal distribution with a mean of m 5 30.7 pounds and a standard deviation of 3.6 pounds. Suppose we randomly choose a 3-year-old female and call her weight X. What is the probability that she weighs at least 30pounds?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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