A relative frequency distribution is provided for the size of families in one U.S. city. A family isselected at random. Find the probability that the size of the family is less than 5. Round to threedecimal places.Size Relative frequency20.43530.24540.20.0750.0280.017567+OA. 0.520OB. 0.445OC. 0.880OD. 0.075

P(the size of the family is less than 5)

Answered: A relative frequency distribution is…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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8°F Vindy Question 3 Question submitted. > Next question You can retry this question below The probability distribution for the number of houses on a street is given, but one value is missing. Fill in the missing value, then answer the questions that follow. P(X) X 22 23 24 25 26 ++ 0.16 0.2 0.23 .23 0.18 Round your answers to two decimal places. b) Find the mean number of houses on the street: 27.04 c) Find the variance of the number of houses on the street: 1.79 Submit Question Q Search H 8p
Find the margin of error for the given values of c, s, and n. c= 0.80, s = 2.6, n= 10 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.)
The frequency distribution shown here illustrates the number of medical tests conducted on 37 randomly selected emergency patients. Number of tests performed Number of patients 12 1 2 2 3 5 4 or more 9 Send data to Excel If a patient is selected at random, find the probability for the following. Enter your answers as fractions or as decimals rounded to 3 decimal places. Part: 0/ 3 Part 1 of 3 P(patient has had exactly 2 tests done)
The distribution of the number of hours that a random sample of people spend doing chores per week is shown in the pie chart. Use 32 as the midpoint for "30+ hours." Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. W Click the icon to view the pie chart. ..... 5-9 12 10-14 23 15-19 16 20-24 18 25-29 12 30+ 4 Find an approximation for the sample mean. x= 16.6 (Type an integer or decimal rounded to the nearest tenth as needed.) Find an approximation for the sample standard deviation. s= (Type an integer or decimal rounded to the nearest tenth as needed.)
Let X be a random variable of the number of Boys in a family. List the sample space for A children. b. Construct a probability distribution for his experiment. Find V(-8x). a. A=7 С.
4. Create a probability distribution for distribution of "number of heads" appearing after flipping three coins. Find its mean and its standard deviation. Desktop 54°F Rain to stop DELL F5 F6 F7 F8 F9 F10 F11 F12 PrtScr Insert De & Be Y G H J K 立
Refer to this figure to answer number 8- 10. The table below show the probability distribution of number of face mask sold per day. 1 2 3 5 6. 7 8. 10 0.07 P(x) P/x) 0.16 0.07 0.1 0.09 0.1 0.07 0.08 0.1 0.17 0.56 1.4 1.96 5.76 11.56 0.16 0.40 0.16 0.14 0.3 0.36 0.5 0.42 0.56 0.9 1.7 X-U -4.6 -3.6 -2.6 -1.6 -0.6 0.4 2.4 3.4 4.4 (x-)A2 (x-u)A2 *P(x) 21.16 12.96 6.76 2.56 0.36 0.16 19.36 3.39 0.91 0.68 0.23 0.04 0.01 1.16 3.29 8. What is ExP(x) =? A. 5.6 B. 6.5 C.7 D. 8 9. What is a? = E[(x - 4) P(x)] A. 5.9 %3D В. 8.6 С. 10.25 D. 11.35 10. If the standard deviation of the variance of problem number 9 is 3.20156, then how do we get the value of standard deviation given the value of variance? A. Vo? B. Va C. uP(x) D. o ololo-
Four coins are tossed, and the number of heads is recorded. Shade the region on the histogram that gives the indicated probability. P(x > 2) Which of the following shaded regions gives the indicated probability? (Type A, B, C, or D.) A) 0.5- 0.38- 0.25- 0.13- 0- 0.5- 0.38 0.25- 0.13- लट 0 1 2 3 4 01 2 3 4 B) D) 0.5- 0.38- 0.25- 0.13- 0- 0.5- 0.38 0.25 0.13- 0- 0 1 2 3 4 0 1 2 3 4
Find the indicated probability. The age distribution of students at a community college is given below. Number of students Age (years) (f) Under 21 411 21-25 413 26-30 203 31-35 58 Over 35 24 1109 A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places. O 0.926 82 O 0.052 O 0.074 ASUS 近
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A population of the values 2, 4, and 7. List down all the possible samples of size 2 which can be drawn from this population. Find the following: List all of the possible sample of size of 2. Compute the mean of each sample Identify the probability of each sample illustrate the histogram
Norman is a student at a college in Durban. The amount of time, in minutes, that Norman walks to the college for his final examinations is constantly distributed between 15 to 40 minutes, inclusive. Use this information to answer the following questions.1. Name the continuous probability distribution described above. Explain in detail why it is called the distribution of little information. 2. Calculate the probability that the student will take between 28 and 38 minutes. Provide interpretation for your answer. 3. Find the probability that the student will take no more than 30 minutes to arrive at the college. Provide interpretation for your answer.4. Compute the probability that Norman will take least 35 minutes to get to the college. Provide interpretation for your answer.5. Calculate the mean, variance and the standard deviation of the distribution described

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