ce homeCalendarBadgesAll coursesCourse dashboardThe following table represents the probability distribution of the random variable X. FindP(X-3)001241/16P(X) 2/16 3/16 10/16Select one:O 1/16O15/16O10/165/16estion 4Identify which sampling method is used:

From given probability distribution table P(X<=3)=?

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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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Which is a negatively skewed distribution?
Compute the variance of the probability distribution in the table below. Outcome Probability 65 0.3 66 0.1 67 0.1 68 0.5 Find the variance. σ2=nothing (Type an integer or a decimal.)
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The accompanying table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Use the range rule of thumb to determine whether 1 girl in 10 births is a significantly low number of girls. E Click the icon to view the table. - X Probability distribution for x Use the range rule of thumb to identify a range of values that are not significant. The maximum value in this range is 8.4 girls. (Round to one decimal place as needed.) Number of Girls x The minimum value in this range is girls. (Round to one decimal place as needed.) P(x) 0.004 0.011 1. 0.036 0.116 0.204 0.246 0.206 4 5 0.113 0.037 8 0.015 10 0.012
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Company F sells fabrics known as fat quarters, which are rectangles of fabric created by cutting a yard of fabric into four pieces. Occasionally the manufacturing process results in a fabric defect. Let the random variable X represent the number of defects on a fat quarter created by Company F. The following table shows the probability distribution of X. X 0 1 2 3 4 or more Probability 0.58 0.23 0.11 0.05 0.03 If a fat quarter has more than 2 defects, it cannot be sold and is discarded. Let the random variable Y represent the number of defects on a fat quarter that can be sold by Company F. (a) Construct the probability distribution of the random variable Y. (b) Determine the mean and standard deviation of Y. Show your work. Company G also sells fat quarters. The mean and standard deviation of the number of defects on a fat quarter that can be sold by Company G are 0.40 and 0.66, respectively. The fat quarters sell for $5.00 each, but are discounted by…
Studies have shown that the percent of California Community College students that take a certain number of units per quarter follow the following distribution.
Part 2 Let x be a random variable that represents the batting average of a professional baseball player. Let y be a random variable that represents the percentage of strikeouts of a professional baseball player. A random sample of n = 6 professional baseball players gave the following information. x 0.338 0.306 0.340 0.248 0.367 0.269 y 3.5 7.7 4.0 8.6 3.1 11.1 Σx = 1.868, Σy = 38, Σx2 = 0.592034, Σy2 = 294.32, Σxy = 11.1556, and r ≈ -0.901. Se ≈ 1.5890, a ≈ 26.420, and b ≈ -64.517. (a) Find the predicted percentage of strikeouts for a player with an x = 0.328 batting average. (Use 2 decimal places.) %(b) Find a 90% confidence interval for y when x = 0.328. (Use 2 decimal places.) lower limit % upper limit %
Full data set D A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed with no outliers. Do carpeted rooms have more bacteria than uncarpeted rooms at the a = 0.05 level of significance? Carpeted 11.4 10.2 Uncarpeted 10.9 10.9 5.9 10 13 6.9 10.9 8 5.2 6.6 6.4 7.7 7.1 1.2 Click the icon to view the Student t-distribution table. What are the null and alternative hypotheses? Ho: versus H1: Calculate the test statistic, to. to = (Round to two decimal places as needed.) %D Now find the critical value. Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed.) O A. ta = B. ta/2= Do carpeted rooms have more bacteria than uncarpeted rooms at the a = 0.05 level of significance? O A. No, because the test…
Consider the population described by the probability distribution shown below. The random variable is observed twice with independent observations, as shown below. Complete parts a and b. Full data set X 3 4 5 6 p(x) 0.2 0.2 0.3 0.3 a. Complete the sampling distribution table. Type the medians in ascending order. Median 3 5 6 Probability || 0.08 0.24 (Simplify your answers. Type integers or decimals.) 4 0.18 (…) 0.04 Sample |3,3 3,4 3,5 Probability 0.04 0.06 Sample 5,3 5.4 Probability 0.06 0.06 3,6 4,3 0.06 0.04 4,4 4,5 4,6 0.04 0.06 0.06 5,5 5.6 6,3 6,4 0.09 0.09 0.06 0.06 6,5 6,6 0.09 0.09

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ce home Calendar Badges All courses Course dashboard The following table represents the probability distribution of the random variable X. Find P(X-3) 00 1 2 4 1/16 P(X) 2/16 3/16 10/16 Select one: O 1/16 O15/16 O10/16 5/16 estion 4 Identify which sampling method is used: