1/1 Determine the angles made by the vector V = 40i - 30j with the positive x- and y-axes. Write the unit vector n in the direction of V.

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A: The annual salaries of four men were $15000,$16000,$16500 and $40000

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A: Given X=154 n=250

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A: See the handwritten solution

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A: The mean is 73 and the standard deviation is 11.

Q: Round the number to the nearest ten 11,663.654

A:

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Q: 1. The average test score of entire school is 78 with standard deviation 10. A teacher took a random…

A: 1. The provided information is  x¯=78σ=10n=10µ=75The parameter mean is C. 75

Q: General Direction: Perform each of the following steps. a. Find the Spearman rank correlation…

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

Q: A sample is selected from one of two populations, S₁ and S₂, with P(S₁) = 0.8 and P(S₂) = 0.2. The…

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Q: What is the value of I? Complete the table. Class Frequency Lower Boundary Interval (1) (LB) 70-76…

A: Class Frequency (f) Lower boundary(LB) (class mark) (x) f⋅x <cf 70-76 15…

Q: What is the value of F? Complete the table. Class Frequency Lower Boundary (LB) Interval 70-76 15…

A: Class Frequency (f) Lower boundary(LB) (class mark) (x) f⋅x <cf 70-76 15…

Q: Suppose you were given this Joint Probability Distribution: y = number of times city name is stated…

A:

Q: What is the value of C? Complete the table. Class Frequency Lower Boundary (LB) Interval (1) 70-76…

A: Class Frequency (f) Lower boundary(LB) (class mark) (x) f⋅x <cf 70-76 15…

Q: Find the intercept of the regression line.

A: here from given Information  Sxx = 6000 Syy = 153028  Sxy = -30060

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A: Given that n =18 , p=0.11 Find ( a ) P ( X =3 ) =? ( b )  P( X> =3 ) = ? ( c ) Mean =?…

Q: Of the data sets below, which has standard deviation 0? Set A: 1, 2, 3, 4 Set B: 1, 1,4,7 Set C: 0,…

A: The  Data set D. 6,6,6,6 Σx=24 Σx2=62+62+62+62=144n=4The standard deviation is…

Q: 2.2. An independent random of sample size 9 is taken from ux = 0²x= 3. A random sample size 25 is…

A:

Q: Weekly demand for a certain brand of a golf ball at The Golf Outlet is normally distributed with a…

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Q: 22. Given a random sample {(x₁, y₁), (x₂.2),---, (xYn)) such that S = 107 and Syy = 54.75. If the…

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Q: If A and B are mutually exclusive events with P(A) = 0.75, then P(B): a. can be any value…

A: Given P(A)=0.75

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Q: 1) Melina recorded the number of passengers in each car of the first 100 cars that passed in front…

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Q: What is the median of the set of data? Complete the table. Class Frequency Lower Boundary Class Mark…

A: Class Frequency (f) Lower boundary (LB) Mid value (x) f⋅x <cf 7-13 8 6.5 10…

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Q: P(Z is less than 1.15)= ✔ [Select] 0.75923 0.8675 0.87493 0.1157

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Q: General Direction: Perform each of the following steps. a. Find the Spearman rank correlation…

A: Given: Sample size n = 6 Significance level α = 0.05 Formula Used:  Correlation coefficient r =…

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A: Hello. Since your question has multiple parts, we will solve first 3sub parts question for you. If…

Q: Horn Length (in) 16 21 26 17 15 10 16 8 20 The data above represents measurements of the horn…

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Q: How many 3-digit numbers with no repeated digits using 4, 5, 6, 7, 8 can be a. less than 520? b.…

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Q: Sample 3 3.5 4 4.5 5 6 mean Probability 1/16 2/16 3/16 2/16 1/16 Find the standard error of the…

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Q: Calculate y for an exponential growth problem with a rate of 0.07 and x=4 and a=2.

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Q: In a recent survey of  680  working Americans ages  25 - 34 , the average weekly amount spent on…

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Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: HERE use given data and 5 classes for making Frequency Distribution

Q: Sample 3 3.5 4 4.5 5 6 6.5 7 9 mean Probability 1/16 2/16 3/16 2/16 1/16 2/16 2/16 2/16 1/16 Find…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: 2. When 4 independent samples are taken X 0 1 2 f(x) 1/5 1/5 1/5 3 1/5 1/5

A: As per our guidelines we are suppose to answer only one question 2)Given data is x 0 1 2 3 4…

Q: ferroni Correc

A: Given,

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1429…

A: Given datasince an instant reply system for tennis was introducedmen challenged 1429 refree calls…

Q: A population consists of the four numbers 3, 4, 5, 9 with mean = 5.25 and variance = 5.1875.…

A: The objective is to find the mean of the sample mean. Sample mean(x) 3 3.5 4 4.5 5 6 6.5 7 9…

Q: A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to…

A: Given that

Q: A study of 420,010 cell phone users found that 0.0319% of them developed cancer of the brain or…

A: Solution: Given information: n= 420010 Sample size  p^=0.0319100= 0.000319 Sample Proportion