According to CBS Money Watch, the average monthly household cellu phone bill is $100. Suppose monthly household cell phone bills are normally distributed with a standard deviation of $11.35. What is the probability that a randomly selected monthly cell phone bill is more th $120? Round your answer to 3 decimal places.

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A: Given, A die is weighted so that a score of 5 is three times as likely to appear as a score of 4. A…

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A: Given that, Average, λ = 52

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Q: upvote.

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Q: 2. For an exam given to a class, the students' scores ranged from 35 to 98, with a mean of 74. Which…

A: Given:For an exam given to a class the students scores ranged from 35 to 98 with a mean of 74

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A: Here Given  Grades in statistics class are weighted as Tests are worth 50% of grade, homework is…

Q: Sam deals 5 cards to Samira. a) What is the probability that she has at least 4 diamonds in her ha…

A: Total number of playing cards = 52 Spade 13 Diamonds 13 Hearts 13 clubs 13   King 4…

Q: 5. M = 3₁ 0² = 9₁ P/²6 < X < 12) a. Determine Plμ -ko < X < µ + ko ) 2 1 - 1 / / / k²

A: P(-6&lt;X&lt;12)=P(-6-33&lt;X-μσ&lt;12-33)=P(-3&lt;Z&lt;3)=P(-3&lt;Z&lt;0)+P(0&lt;Z&lt;3)=0.4987+0.4…

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A: From the provided information, Total cards = 52 Total King = 4 Total Queen = 4

Q: A fair coin (P(heads) = 0.5) is flipped 6 times. What is the probability of flipping fewer than 3…

A: Binomial distribution is given by

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Q: An un contains cards numbered 1.2 ... 100 . Let X be the least number on the 50 cards drawn randomly…

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Q: Q3/ The probability that a consumer will rate a new antipollution device for cars What are the…

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Q: A survey conducted for the Northwestern National Life Insurance Company revealed that 70% of…

A: It is given that n = 20 and p = 0.70.

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A: Standard normal distribution is a type of normal distribution expressed in z-score.

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A: Here given there were six kinds of toppings that one could order for pizza  Here use counting…

Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

A: Given,Total no.of toppings=6

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Q: In probability theory, rolling a die is considered to be an experiment. What is the term that…

A: The die is rolled and die shows the number 2.

Q: Q3: B- If the variable y has a Poisson distribution with the parameter = 2 find: P(y=4) 1 P(y ≥6) .Y…

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Q: Q2/suppose there were six kinds of toppings that one could order for a pizza. How many combinations…

A: GivenNo.of toppings(n)=6No.of toppings could be ordered(r)=3

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A: Given statement :Number of circular permutations of different things taken all at a time is (n-1)!

Q: r A continous random variable x has p.d.f.,then f(x) >;0 a O It; f(x)==0 f(x) >==0 f(x) >=1 .b O .CO…

A: fx is probably density function that must be positive.

Q: Q6/ Find the probabilities that a random variable having the standard normal distribution will take…

A:

Q: If the probability distribution of a continuous random variable that has values between y = 1 and 3…

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Q: that there was no infection by that disease :in a town of 100,000 population is

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Q: ory 31 A test was given to a group of students. The grades and gender are summarized below A B C…

A: A B C Total Male 10 15 9 34 Female 12 14 3 29 Total 22 29 12 63

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

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Q: If (xoy). X 2 4 · 10.10 3 0.15 0.20 0.30 5 0·10 0·15 d. Determine the cumulative distribution…

A: Given data is  f(x,y) x 2 4 Total y 1 0.10 0.15 0.25 3 0.20 0.30 0.50 5 0.10 0.15 0.25…

Q: 5. M = 3, O² = 9₁ P(- 6 1. - 1 1/2 ² 2

A: Given mean and variance, we have to determine the indicated probability using the given formula.

Q: A random sample of 50 employees is chosen from a company. The average salary of the 50 employees is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The probability that there is no accident at a certain busy intersection is 95% on any given day,…

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Q: Recently, Goran ran for president of the local school board. Of those who voted in the election, 80%…

A: The answer is attached below,

Q: f (x) = kx^2, k constant, -1 =< x =< 1. f (x) is a p.d.f. ?the value of k= 1

A: Here use basic of probability density function  For valid probability distribution total probability…

Q: : E1 occurs and E2 occurs, find probability of E3

A: here given  When Rolling Die  E1 = event that outcome is 1,2,3 or 4 E2 = event that even number…

Q: 4. The effectiveness of a new drug was studied by 3 randomized experimental design (one-way ANOVA)…

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Q: 3. Random samples of four different kinds of cereal show the following number suggested serving size…

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A: The level of significance is 0.01.

Q: Suppose X has a normal distribtution N(2,1), then E(X)= Var(X)=

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Q: Vehicles pass through a junction on a busy road at an average rate of 60 per hour.  a) Find the…

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Q: 1) Find the two-step transition matrix

A: here given Transition Matrix of markov chain