If you roll a pair of dice, what is the probability that (at least) one of the dice is a 4 or the sum of the dice is 7

Q: What is the shape of this graph?

A: Given that  The histogram 

Q: A researcher has collected the following sample data. The main of the sample is 5. 3 5 12 3 2 ...

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Q: An insurance company has written 50 policies for ​$125,000​, 100 policies for ​$30,000​, and 250...

A:   we can find n = (50*125000+100*30000+250*10000) = 11750000  

Q: EXAMPLE 5. Calculate Quartile Deviation and its Coefficient. July Aug. Sept. Oct. 145 Nov. Dec. Jan....

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Q: Calculate range and its co-efficient from the following statistical data: Profits ( $ in 000's) 125,...

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Q: For the data shown, answer the questions. Round to 2 decimal places. 5.9 2.1 4.4 25.1 4.3 1.5 28.2 5...

A: x x2 5.9 34.81 2.1 4.41 4.4 19.36 25.1 630.01 4.3 18.49 1.5 2.25 28.2 795.24 5.4 29....

Q: taking a statistics class and a biology class. Suppose her probabilities of getting A’s are: P(grad...

A: Given: P(A in statistics) = 0.709 P(A in biology) = 0.766 P(A in statistics and a grade of A in biol...

Q: Find the area under the standard normal curve, which lies (a) To the left of Z 0.94 (c) To the right...

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Q: 1) What is the standard deviation of the sampling distribution for this situation? Round to four pla...

A: Given : n=72 Mean=149000 Population standard deviation =44000

Q: A competency test is modified so that the proportion of test-takers that pass is more than 75%. A si...

A: Sample proportion is given by   

Q: A research report states t(18)=+3.00, p<. 05. For this test, r2 =. 33

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Q: From the below given data calculate trend values. Years : 1988 1989 1990 1991 Sales in (1000): 10 12...

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Q: The frequency distribution of weight in grams of mangoes of a given variety is given below. Calculat...

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Q: 2014 Top Albums (Based on U.S. sales) Of all of the U.S. album sales, album 1 accounted for 22% of s...

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Q: greater than one in three games sold is an M-rated game, is this True or False?

A: The above statement is false

Q: Q. 8. Calculate the mean from the following data: Marks below : 10 20 30 40 50 No. of students : 15 ...

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Q: Property 3. (Mean of the composite series ). If xi (i = 1, 2,..., k ) are the means of k component s...

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Q: From the following infórmation, ble : Σχ= 235, Σy= 250 2 Ey = 6840 6750

A: Given: ∑x=235∑x2=6750∑y=250∑y2=6840n=10

Q: Given below are two price index series. Splice them on the base 1994 = 100. By what per cent did the...

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Q: Situation 3: Professor Rojas wanted to find out if his students' vocabulary skills correlate signifi...

A: Given information: Student Number Vocabulary skills Writing skills 1 37 83 2 24 75 3 25 ...

Q: The fun size of a Snickers bar is supposed to weigh 20 grams. Because the penalty for selling candy ...

A: Given data: 19.6,19.9,20.5,21.5,20.6,20.6,20.3,19.7,19.5 n = 9  

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, v...

A: As per Bartleby guideline expert have to answer first question only dear student please upload other...

Q: Calculate combined mean from the following information. Total no. of boys = 50 %3D Mean weight of bo...

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Q: n. The card is replaced in the pack and B A draws a card from a pack of n cards marked 1, 2, draws a...

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Q: The average score on a statistics test was 2.52 with a standard deviation of 0.75. The teacher suspe...

A: Given : E(x) =2.52, SD(x) =0.75 Var(x)=0.752 =0.5625 New score is y=ax+b Such that : E(y) =3.58 SD(y...

Q: The estimated standard error is a measure of central tendency. True or false

A: Solution :-   

Q: In 1991 for working class people wheat was selling at an average price of $100 per 10 per metre, hou...

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Q: Four different survey were done to understand the policies of the government. Fifteen persons were c...

A: The observed counts of "yes" responses for each of the surveys are:   Assume the significance level...

Q: Q3. Given the Venn Diagram and its Carroll Diagram: wwm w Prob. Venn Diagram Incomplete Carroll diag...

A: The diagram shows the probability Venn diagram and Carrol diagram.

Q: b) The following table shows the time students from a college took to complete a marathon. Time (min...

A:

Q: Estimated standard error is a measure of central tendency

A: The estimated standard error is a part of inferential statistic. And it is represent the standard de...

Q: Evaluate A? sin (x + h) E sin (x + h) sin (x + h) + where interval of differencing is h.

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Q: A small-town mechanic says that 8% his customers come in for an oil change. When  1000 samples were ...

A: Target population means, the set of elements that we want to know more about

Q: The school board is trying to evaluate a new mathprogram introduced to second-graders in five elemen...

A: Given: 52 27 35 44 55

Q: Let the random variable X follow a normal distribution with mean = 120 and variance = 72.25. Find th...

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Q: From the following given sets of observations find the coefficient of correlations: (a) x Y (b) Y 69...

A: a) There is a positive correlation r=1.

Q: If X is a Poisson variable such that P(X=2)= 9P(X= 4) + 90P(X= 6), find the mean and variance of X.

A: Given,A random variable X~Poisson(λ)P(X=x)=e-λ λxx!  ;  x≥0

Q: a) What is the probability that exactly two patients will arrive in a given hour? b) What is the pro...

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Q: Show that for a random sample of size 2 from N (0, ơ²) population, E[Xq„] = - o/Vr.

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Q: A company launches an advertising campaign of its new product on TV, radio and in print media in an ...

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Q: a) Compute the probability that two randomly selected chips are defective using conditional probabil...

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Q: Five groups of subjects were given the following four conditions. The data obtained is given below. ...

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Q: Which of the following symbols is associated with the independent variable in the regression equatio...

A: Solution-: Which of the following symbols is associated with the independent variable in the regress...

Q: randomly selected person aged 30 years or older is male, given that he or she jogs. What is the prob...

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Q: A particular manufacturing design requires a shaft with a diameter of 24.000 mm, but shafts with dia...

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Q: 12. This non probability sampling is a variation of stratified sampling, wherein samples are collect...

A: Ans#12- This non probability sampling is a variation of stratified sampling, wherein samples are col...

Q: The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget...

A: Given that  μ=52 , ?= 8 X~Normal(μ=52 , ?= 8)

Q: A car hire firm has two cars which it hires out day by day. The number of demands for a car on each ...

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Q: Situation 1. To find out the effectiveness of a Strategic Intervention Material, Mrs. Lunes conducte...

A: According to Bartleby guildlines we have to solve first three subparts and rest can be reposted... W...

Q: The first four moments of a distribution about the origin are 1, 4, 10 and 46 respectively. Obtain t...

A: