For question 16-18, consider the following distribution of test scores in a * science class. 16. What is the mean score of learners in the science test? Cumulative Frequency Frequency 2 75 11 73 21 62 20 41 10 21 8 11 3 Score Interval 35-39 30-34 25-29 20-24 15-19 10-14 5-9 N A. 21 OB. 22 OC. 23 OD. 27 35 75

Q: Oz Aradom Variable(x) has the following cof FX(X) = (x³ + x) al find the pdf of X find Pro <xcot)…

A: Given that: The cdf of random variable X is given as: FxX=12X3+X      where 0≤X≤1

Q: The class width is

A: here given  minimum = 7 maximum =  70  number of classes  =  6

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A: The question is about frequency distribution Given :

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Q: Simplify 6². 6v. A. 6ª+v B. 6av C. 36a+v D. 36av

A: Solution-: We simplify 6a*6v=?

Q: What score must a learner earn on the SAT mathematics test in order for the score to be at the…

A: HERE GIVEN , For the SAT mathematics score, the mean was 516 with a standard deviation of 116.

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A: Given that Wrapper A 90 Wrapper B 98 Wrapper C 130 Wrapper D 82 n=4 Sum=∑400

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A: Here we have to answer, an ANOVA would help establish a cause effect relationship.

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Q: The standard mean constant of the composition is.

A: Given:  E(w)=1000  And E(ln*w)=3600  Then to find standard mean constant composition?

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A: The provided information is  µ=-2 σ=3 P(X&gt;1) P(X-µσ&gt;1-(-2)3)P(z&gt;1)=0.1586  (from…

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A: Solution: Given information: k= 2 independent variables  n= 10 observation  SST= 15092.1  SSR=…

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A: Solution-: We want to sketch the graph that shows Z0.44 and then determine Z0.44=?

Q: A sample of 200 college freshmen was asked how many hours per week they spent playing video games.…

A: ( a ) How many classes are there? ( b ) What is the class width?

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Q: particular summer camp. Calculate the 90% confidence interval for the proportion of students…

A: here given ,  n= 900 now here 630 out of 900 students have attended a particular summer camp p^ =…

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Q: Given: n=18, x=72, and ó = 7. The sampled population is normally distributed. a. Find the 90%…

A: Given n=18 X=72 Standard deviations=7

Q: Extreme/usual scores that can impact results are called:

A: Solution: Outliers: Outliers can be defined as outliers are the extreme observation that are…

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A: here use basic of t- distribution

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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…

A: The mean is 264 and the standard deviation is 15.

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Q: A learner has the following scores - an ACT composite score of 32 -an SAT mathematics score of…

A: Given For ACT x=32 Mu=21 Standard deviations=5.2 For SAT x=760 Mu=516 Standard deviations=116

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A: Solution: The population regression equation is  log(Salary)=β0+β1log(sales)+β2roe+β3ros

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A: The following data has been provided: 20.7,15.2,2.5,3.8,17.9 The sample size is n=5

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Q: population of parameter A. 1. Find a 90% confidence interval for X;

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Q: The mean salary of federal government employees on the General Schedule is $59,593. The average…

A: Solution:- from given information claim: state employees earn on average less than federal employees…

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A: Since, the question to be answered is not mentioned, we'll be answering only the first question.…

Q: The Study: A researcher wishes to determine the acceptability of PRODU PRODUCT 2 in the market. Give…

A: Rates No. of respondents Product 1  Product 2 10 5 1 30 3 4 5 2 2 5 1 3…

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Q: pectancy in years of a given country (x). e results of the regression were: y=a+bx a=-0.887 b-0.055…

A: Given that a=-0.887 b=0.055

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A: Between Subjects design: Between-subject design is such a design in which different subjects are…

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A: From the given information we conduct paired t test.

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A: Given Q1=23 Median=31 Q3=39 Max=48 Min=11

Q: How would you interpret the following data?

A: Regression Analysis:  The most extensively utilized analysis tool for exploring or measuring the…

Q: For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard…

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Q: The joint probability distribution of the number X of cars and the number Y of buses per signal…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Let X represent a binomial random variable with n = 150 and p = 0.36. Find the following…

A: It is given that n = 150 and p = 0.36.