Consider the density curve plotted below 014 sion Find P(X S 24) Find P(X >26): Calculate...
Jenna categorized her spending for this month into four categories: Rent, Food, Fun, and Other. The percents she spent in each category are pictured here FoodRent 22% | 26% Fun 34% 5% Other If Jenna spent a total of $2400 this month, how much did she spend on Food? The data in the figure below represents the number of stars earned by 140 performers in a talent competition. 35 30 25 5 o 15 2 10 5 Number of Stars...
A set of exam scores is normally distributed with a mean = 82 and standard deviation- 5 Use the Empirical Rule to complete the following sentences. 68% of the scores are between and 95% of the scores are between and 99.7% of the scores are between and Get help: Video Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity Box 2: Enter your answer as...
From this density, the
probability that X > 1.68 or X < 0.3 is:
The probability density of a random variable X is given in the figure below. From this density, the probability that X> 1.68 or X < 0.3 is: Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity
In a sample of 98 people 63 were in favor of a zoning change. What are the mean and standard deviation, and standard error of the mean of this sample? mean = standard deviation (accurate to 3 decimal places) = standard error of the mean (accurate to 3 decimal places) = Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity Box 2: Enter your answer...
The probability density of a random variable X is given in the figure below. From this density, the probability that X is between 0.76 and 1.54 is: Box 1: Enter your answer as an integer or decimal number. Examples: 3, 4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity
Two samples are taken with the following numbers of successes and sample sizes t1 = 32 r2 = 24 n1 = 60 n2 = 99 Find a 99% confidence interval, round answers to the nearest thousandth. <P1 - P2 Box 1: Enter your answer as an integer or decimal number. Examples: 3,-4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity Box 2: Enter your answer as an integer or decimal number. Examples: 3, 4, 5.5172 Enter DNE for...
For a standard normal distribution, find: P(z < -0.85) Express the probability as a decimal rounded to 4 decimal places. . Incorrect Get help: VideoVideo Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity
Two samples are taken with the following sample means, sizes, and standard deviations I1 = 24 D9 = 25 n = 72 m2 = 59 81 = 3 89 = 2 Estimate the difference in population means using a 94% confidence level. Use a calculator, and do NOT pool the sample variances. Round answers to the nearest hundredth. 11-12 Box 1: Enter your answer as an integer or decimal number. Examples: 3,-4,5.5172 Enter DNE for Does Not Exist, oo for...
he graph illustrates the distribution of test scores taken by College Algebra students. The maximum possil he test was 140, while the mean score was 74 and the standard deviation was 15. 29 44 104 119 59 74 89 Distribution of Test Scores Q What is the approximate percentage of students who scored between 29 and 74 on the test? % What is the approximate percentage of students who scored higher than 119 on the test? 1% What is the...