Find the probability using the standard normal distribution. P (z< - 0.42)

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A:  Given that.   X~N( μ , ?^2 )   μ=28    , ?=4   Z-score =( x - μ )/?

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Q: CNNBC recently reported that the mean annual cost of auto insurance is 1025 dollars. Assume the stan...

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Q: Find the probability of the indicated event. a. She gets one of each color other than blue, given th...

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A: Given that n =12,p =0.03 find P( x&lt;3 ) =?

Q: How do you illustrate a normal random variable?

A: How do you illustrate a normal random variable?

Q: A business calculates that 60% of its suppliers are UK-based. Every month it randomly selects 8 of i...

A: Given that  Probability of its suppliers are UK-based=68% X=Number of supplies are UK-based X~Binomi...

Q: (a) What is the probability that a PC is in a bedroom? (b) What is the probability that it is not in...

A: here use given probability

Q: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that e...

A: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that e...

Q: According to records, the amount of precipitation in a certain city on a November day has a mean of ...

A: For the given data find the probability ?

Q: Assume that when human resource managers are randomly selected, 47% say job applicants should follow...

A: Given data is p=0.47n=5Let "x" be the job applicants should follow up within two weeksx~Binomial(n=5...

Q: 3. [8] Let A = {a, b, c} and B = {u, v}. Use the set-roster notation to write the elements in the fo...

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Q: A certain bus and a person arrived at a bus stop at a random time between 12 pm and 1 pm. If bus arr...

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Q: Show that the following function satisfies the properties of a joint probability mass function. y fx...

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Q: Q2: The following data represent the weight loss in pounds of individuals on a five-week weight cont...

A: Note : As per the company guidelines, only three subparts can be answered at a time. Kindly, resubmi...

Q: If a population has a standard deviation of 9.7, what is the standard deviation of the sampling dist...

A: Disclaimer : Since you have asked multiple question, we will solve the first question for you. If yo...

Q: The number of computers sold per day at a local computer store, along with its corresponding probabi...

A: Solution

Q: Q3: A study was conducted to determine the effectiveness of a particular test for detecting a certai...

A: In statistics, the probability plays a vital role, and it is defined as the ratio of favorable outco...

Q: Mia work in an automotive tire factory. The number X of sound but blemished tiles that she produces ...

A: (A) Obtain the probability that mia will produce more than three blemished tires tomorrow. The proba...

Q: 45. A regression analysis yields the line ý = 18 + 0.25x. One of the subjects, Mary, has æ = 40 and ...

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Q: How many ordered sequences are possible that contain four objects chosen from thirteen?

A: According to the given information in this question We need to find the value P( 13,4)  

Q: A school is offering two extracurricular classes, one in Playing Chess and the other in Painting The...

A: Given information: Number of students is 350. 58 students in Playing chess class. 44 students in Pai...

Q: Find the indicated probabilities: a. P(5sxs7); µ=6; 0=2 ANS: b. P(10sxs16); µ=15; 0=4 ANS: c. P(7sxs...

A: Here we have to find the indicated probability for each of the following  

Q: 1. A normally distributed variable has a u = 100 and o = 10. If a sample of n =25 is selected, what ...

A: Let X be the random variable from normal distribution with mean (μ) = 100, standard deviation (σ) = ...

Q: Suppose that the Cumulative distribution function (CDF) of the random variable X with parameter 0 > ...

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Q: Answer the question, considering an event to be "unusual" if its probability is less than or equal t...

A: Since you have posted multiple questions, we are answering the first question.  

Q: Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 73m...

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Q: The antibody production of 12 male red-winged blackbirds before and after recelving testosterone imp...

A: It is given that margin of error (E) is 0.07 and the confidence level is 0.80.

Q: A sample size of 40 is taken from a uniformly distributed population. The meaning of the population ...

A: The given information is- Sample size = n = 40 We know that, the central limit theorem applies when ...

Q: A project team of 2 to 5 people is being formed from a staff of 15, How many such teams are possible...

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Q: 5. How is the sampling distribution of the statistic displayed?

A: We have to find that  The sampling distribution of chi square Statistic :   

Q: Using the data pictured below create a correlative graph that includes mean calculations, variables ...

A: Correlation: Generally, correlation is used to describe the relationship between the two variables. ...

Q: The results of a nationwide aptitude test in mathematics are normally distributed with m=80 and s=10...

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Q: Find Probability that, a person who test positive has disease.

A: HERE DEFINE events  person have disease  = X test result positive  = Y

Q: What is the probability of a die showing a 2 or a 5?

A: If die are rolling then sample space is,  S = { 1, 2, 3, 4, 5, 6 }  

Q: |Q3. Expected value, variance and the mgf of the sample mean Let X1,..., X, be independent and ident...

A: Ans:

Q: E= || Lower limit = Upper limit =

A: here n = 100 population standard deviation = 3 sample mean = 16 Z-critical for 95% confidence level ...

Q: Fill in the blanks: The life expectancy of a brand of light bulbs is normally distributed with a mea...

A: Note: According to Bartleby guidelines expert solve only one question and maximum 3 subpart of the f...

Q: have a coin loaded such that P(heads) = 3/7 and P(tails) = 4/7. suppose that the coin is tossed thre...

A: Given that, I have a coin loaded such that P(heads) = 3/7 and P(tails) = 4/7. suppose that the coin ...

Q: There is a very popular lottery in which a ticket is called a scratcher. In this lottery, 47% of the...

A: Solution: Given that: p= 0.47 Population proportion  n= 7 Sample size   

Q: et X1 and X, have the joint pdf a+ ,0 < a <1,0< <1 10, otherwise, f(1, a) %D ompute the probability ...

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Q: Assume that the amount of time taken by students to write an organic chemistry test is normally dist...

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Q: Find the probability of scoring a total of 8 points in 2 tosses of a pair of fair dice (a) once, (b)...

A: If a pair of fair dice is thrown then total number of outcomes, n(S) = 6*6 = 36 The event space for ...

Q: Use the plurality with elimination method to determine the winner of the election. Four students are...

A: The given information is There are 4 students  A-Ariana, B-Brett, C-Carlos, D-DeeDee There are 5 clu...

Q: Q -3: In each of the following cases, determine whether a significant degree of rank correlation exi...

A: Given information: Student Midterm Final A 1 10 B 2 9 C 3 8 D 4 7 E 5 6 F 6 5 G 7 4...

Q: A restaurant with 25 tables has 4 tables by the window. Parties are seated randomly at the tables as...

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Q: contra is req by a cou planning department to e, four, (depending nature of the project) in applying...

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Q: 44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has a = 60 an...

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Q: Consider each problem below. Determine whether the events are mutually exclusive or not mutually exc...

A: From the provided information, The probability that Carl will score in a two-point shoot is 30%. The...