1.Calculate the probability of Micheal winning the puzzle contest when there are 18 boys and 15 girls have participated in the competition. 2.The number is trials is ___________ if a Binomial distribution has a mean of 7 and variance 6. 3.The lifespan of Nickel Cadmium battery of a certain brand has a Normal distribution with mean 17.6 and variance of 3 years. Calculate the probability that the battery has lifespan that is less than its mean lifespan.

1.Calculate the probability of Micheal winning the puzzle contest when there are 18 boys and 15 girls have participated in the competition. 2.The number is trials is ___________ if a Binomial distribution has a mean of 7 and variance 6. 3.The lifespan of Nickel Cadmium battery of a certain brand has a Normal distribution with mean 17.6 and variance of 3 years. Calculate the probability that the battery has lifespan that is less than its mean lifespan.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

1.Calculate the probability of Micheal winning the puzzle contest when there are 18 boys and 15 girls have participated in the competition.

2.The number is trials is ___________ if a Binomial distribution has a mean of 7 and variance 6.

3.The lifespan of Nickel Cadmium battery of a certain brand has a Normal distribution with mean 17.6 and variance of 3 years. Calculate the probability that the battery has lifespan that is less than its mean lifespan.

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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