The chances that a student will get 7 marks out of 10 in first attempt of a certain Quiz while attempting Quiz on BlackBoard LMS is 40%. Suppose that 20 students are selected at random then find a probability that Exactly 12 students will get 7 marks out 10 in the Quiz. Fewer than 10 students will get 7 marks out 10 in the Quiz. At least 5 students will get 7 marks out 10 in the Quiz.

Q: Packed in at Rush Hour! Sq. Ft. per standing passenger Morning Morning Afternoon Afterne 1988 1.5 1....

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: how do i do this?

A: At 95% confidence level, the z value is 1.96 which can be obtained by using the standard normal tabl...

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A: Pre test(A) Post Test(B) d(B-A)   8 12 4   12 16 4   13 13 0   9 11 2   5 9 4   10 8 -2 ...

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A: Answer: When we check the relationship between two variables then scatter plot is best plot to chec...

Q: 14

A:

Q: The mean of 70,80,60,50,43,37,52,63,42,93 is O 50 O 93 O 59 O 52

A: Given the data set as follows: 70, 80, 60, 50, 43, 37, 52, 63, 42, 93

Q: 2

A:  

Q: The table below shows the number of state-registered automatic weapons and the murder rate for sever...

A: x y xy x2   11.3 13.8 155.94 127.69   8.4 11 92.4 70.56   7.2 10.4 74.88 51.84   3.9 7.3 28....

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Q: You construct a 95% confidence interval for a population mean using a random sample. The confidence ...

A: As we know that- The 95% confidence interval defines a range of values that you can be 95% confident...

Q: Statistics Question

A: None is the correct answer.

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A: Testing a claim about the mean of the differences from dependent samples is given.

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Q: Question 2Sandy is running a small business working on hand-made accessories. She has a customer, Je...

A:

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A:

Q: The following table contains the number of successes and failures for three categories of a variable...

A: 1] α=0.01 2] Category 1 2 3 Failures 48 88 37 Successes 62 68 44

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Q: PART (D) Calculate the least squares linePut the equation in the form of hat y =a+bx, Round your ans...

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Q: y 733 1 2 749 756 4 795 779 6 778 Use linear regression to find the equation for the linear function...

A: From the given information, Consider,  The data is as shown below:   x y 1 733 2 749 3 756...

Q: I really need help with this, please show your work when you explain, thanks

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: 1. The average height of NBA players last year was 78.5 inches. A referee thinks that players are ta...

A: Hey, since there are multiple questions posted, we will answer the first question. If you want any s...

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Q: Check 0/1 ptRetries 3Reattempts 99Info Details A population of values has a normal distribution w...

A:

Q: The table to the right contains observed values and expected values in parentheses for tw two catego...

A: Given: Two categorical variable X and Y. Observed Values (f0)   X1 X2 X3 Total Y1 32 44 51...

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Q: Only about 10% of all people can wiggle their ears. Is this percent different for millionaires? Of t...

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Q: 8

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A: Given that,  = 18.4 s = 4.5 n = 35 Degrees of freedom = df = n - 1 = 35- 1 = 34

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A: The frequency marginal distribution is,   x1 x2 x3 Frequency y1 30 25 30 85 y2 30 25 50 105 ...

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.