A car service centre studies the record that shows the number ofcars serviced per day. They uses the data to calculate the relativefrequencies and obtains the following probability distribution.Number of cars, xP(X = x)13450.10.10.20.30.20.1Find the probability that two or less cars are servicedeach day.O 0.6O 0.3О 02O 0.4

Answered: Image /qna-images/answer/fe66d6b2-a293-44b1-a13a-c3d98a9a9637.jpg

Answered: A car service centre studies the record…

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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The weights of steers in a herd are distributed normally. The variance is 90,000 and the mean steer weight is 1200 lbs. Find the probability that the weight of a randomly selected steer is between 1379 and 1590 lbs. Round your answer to four decimal places.
A. Determine each of the following areas and show these graphically. Use probability notation in your final answer. 1. Above z = 1.46 2. Below z = -0.58 3. Between z = -0.78 and z = -1.95 4. Between z = 0.76 and z = 2.88 5. To the right of z = 1.32
Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant O B D Order Accurate 318 260 231 146 Order Not Accurate 30 50 38 20 (a) If one order is randomly selected, what is the probability of getting an order from Restaurant A or an order that is accurate? (Round to three decimal places as needed.) of (b) If one order is randonly selected, what is the probability that the order is from Restaurant A, given that the order is accurate? (Round to three decimal places as needed.) of
There are 6 radar stations and the probability of a single radar station detecting an enemy plane is 0.35. Identify the type of histogram for the probability distribution. P(r) 0.50 0.40 0.30 0.20 0.10 0.075 0 0.244 1 e. skewed left 0.328 2 0236 3 O a. symmetric O b. skewed right O c. uniform or rectangular Od. none of these choices 0.095 4 0.020 0.002 5 6 Number of radar stations r
Please answer both.
The probability that a cellular phone company kiosk sells X number of new phone contracts per day is shown below. X 2 5 7 10 14 P(X) 0.4 0.3 0.1 0.15 0.05 Find the mean for this probability distribution. Only the final answer should be rounded-off to TWO decimal places.
The table below describes the number of students at a local college by sex and grade. The experiment is to randomly select one student from the population described in the table. What is the probability that the student selected is a freshman given he is a male? Enter your answer rounded correctly to two decimal places. Freshman Sophomore Junior Senior 1350 1150 900 1450 1450 1500 2800 2600 2400 Female 1400 800 2200 Male Total Total 4800 5200 10000
Tardigrades, or water bears, are a type of micro-animal famous for their resilience. In examining the effects of radiation on organisms, an expert claimed that the amount of gamma radiation needed to sterilize a colony of tardigrades no longer has a mean of 1150 Gy (grays). (For comparison, humans cannot withstand more than 10 Gy.) A random sample of 25 tardigrade colonies found that the amount of gamma radiation needed to sterilize a colony had a sample mean of 1133 Gy, with a sample standard deviation of 02 Gy. Assume that the population of amounts of gamma radiation needed to sterilize a colony of tardigrades is appraximately normally distributed. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the 0.05 level af significance, to support that H, the mean amount of gamma radiation needed to sterilize a colony of tardigrades, is not equal to 1150 Cy. (a) State the null hypothesis H, and the alternative hypothesis H, that you would use for…
please do this typewritten asap.
The distribution of Bachelor's degrees conferred by a university is listed in the table. Assume that a student majors in only one subject. What is the probability that a randomly selected student with a Bachelor's degree majored in Business, Chemistry or Engineering? Round your answer to three decimal places. Major Frequency Physics 216 Philosophy 207 Engineering 90 Business 170 Chemistry 218 Total 901 Group of answer choices 0.469 0.289 0.342 0.531
The data on the right represent the number of live multiple-delivery births (three or more babies) in a particular year for women 15 to 54 years old. Use the data to complete parts (a) through (d) below. Age Number of Multiple Births 15-19 90 20-24 512 25-29 1633 30-34 2839 35-39 1842 40-44 379 45-54 115 (a) Determine the probability that a randomly selected multiple birth for women 15-54 years old involved a mother 30 to 39 years old. P(30 to 39)=0.6320.632 (Type an integer or decimal rounded to three decimal places as needed.) (b) Determine the probability that a randomly selected multiple birth for women 15-54 years old involved a mother who was not 30 to 39 years old. P(not 30 to 39)=nothing (Type an integer or decimal rounded to three decimal places as needed.)
The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100⁢lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180⁢lbs. Round your answer to four decimal places.

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