The grade distribution for a course is listed in the following table. If a student is randomly selected from this class, what is the probability that they received an A or a B? (Enter answer as a decimal with at least 4 correct decimal places) A B C D F 46 54 36 22 13

Q: Giving a test to a group of students, the grades and gender are summarized below A 15 13 Total 28 12…

A: Here the given table is :-ABCTotalMale1582043Female1341128Total28123171Using formula,

Q: A test was given to a group of students. The grades and gender are summarized below A BC Total Male…

A: The number of students got B grade is 23. The number of students is female and got grade B is 6.

Q: A researcher wants to identify the average number of hours spent by senior high school students…

A:

Q: Which of the following numbers could be the probability of an event? 1, 1.49, 0.27, 0, -0.56, 0.05

A: Numbers are: 1, 1.49, 0.27, 0, -0.56, 0.05

Q: If 10 coins are tossed ,find the mean of the random variable X , if X is the number of heads that…

A: According to the given information, we have 10 coins are tossed. Let X be the number of heads…

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total…

A:

Q: Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food…

A: Given,

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total…

A:

Q: Objective: Probability involving percentages Business Weekly conducted a survey of recent graduates…

A: (1) Obtain the probability that less than 90% of the 77 recent graduates have an annual salary…

Q: Based on historical data kept by a business school, the probability distribution for students who…

A: Given Observation and Calculation

Q: One-and-One Free Throws. A basketball player is fouled in a one-and-one situation, meaning she is…

A: Given data: The given probability that the player makes the first free throw is P=0.7. a) The…

Q: After giving a test to a group of students, below is the summary of grades by gender. A B Total Male…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below B C A 9 17 18 Male…

A: Total students: T = 81

Q: A test was given to a group of students. The grades and major are summarized below A C Total Art 20…

A: Given data is   A B C Total Art 20 17 6 43 Business 3 5 16 24 Total 23 22 22 67

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

A:

Q: The distribution of Master's degrees conferred by a university is listed in the table. Major…

A: It is given that the distribution of Master’s degrees conferred by a university.The total frequency…

Q: Erin has 4 cards, one with the letter A, one with the letter B, one with the letter C, and one with…

A:

Q: A test was given to a group of students. The grades and gender are summarized below A Male 16 19 14…

A: A B C total male 16 19 14 49 female 20 11 2 23 total 36 30 16 80

Q: The probability they are Female AND got Over a 3.0?  _____________ use 4 decimals   The…

A: Solution: The tabular information given in the question is:   Over 3.0  2.0 - 3.0  Under 2.0…

Q: Of the cartons produced by a​ company, 9​%have a​ puncture, 3​% have a smashed​ corner, and 0.5​%…

A: Given : Let A : Cartons has a puncture P(A) = 9% = 0.09 Let B : Cartons has a smashed corner P(B) =…

Q: For a story she is writing in her high school newspaper, Grace surveys moviegoers selected at random…

A: There are two categorical variables which are rating and age. Rating has 2 types which are thumbs up…

Q: After giving a test, below is the summary of grades by gender. A B Total Male 18 12 5 35 Female 11 9…

A:

Q: The number of inches of rain that fell during the month of April was recorded over time.  The number…

A: a) Total number of years = 4+13+21+10+2=50 years.  To find probabilities we divide all frequencies…

Q: Suppose multiple births make up about 9% of births per year in a certain region. The table below…

A: Suppose multiple births make up about 9% of births per year in a certain region. The table below…

Q: 9 Yes 679 159 No 3149 4252 ving l drivers are randomly selected, find the probability that they all…

A:

Q: The following frequency table gives the results of a survey of 1200 college students. The variable…

A: Given data is X Frequency About right 855 over weight 235 Under weight 110 Total 1200

Q: Fifty-four percent of men consider themselves basketball fans. You randomly select 10 men and ask…

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Q: A group of citizens were asked what kind of vehicle they like to drive. The results are summarized…

A: Given that contingency table. Now using this table find required probability.

Q: Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of six…

A: P9chemistry major) = p = 0.20 sample size(n) = 6 x = no. of chemistry majors P(x=3) = ?

Q: Justify an answer

A: To solve this problem, we can use the binomial probability formula, as we are dealing with a…

Q: After giving a test to a group of students, below is the summary of grades and gender. B C Total A…

A: Total  = 66Total C = 7Total Male = 36Male and earned a C: M and C = 2

Q: A test was given to a group of students. The grades and gender are summarized below A B C Male 2 13…

A: From the provided information,   A B C Total Male 2 13 3 18 Female 6 14 18 38 Total 8 27 21…

Q: The table below shows the probability distribution of job satisfaction scores (1 - 4) for a group of…

A: a. Missing value=0.27b. The expected job satisfaction score for this group of senior executives=…

Q: The table gives the data of students categorized by gender and major. Math Physics Biology Majors…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total…

A: From the available information, the grades and gender of the student is displayed below.   A B c…

Q: The grades for a statistic class or as follows: 5 A's, 7 B's, 10 C's, 3 D's, 1F if one person is…

A: Given: The grades for a statistic class or as follows: 5 A's, 7 B's, 10 C's, 3 D's, 1F Total…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Given Total number of order is 1130

Q: You want to know the probability that you will select a king of any suit from a deck of cards. You…

A: Relative Frequency :  The relative frequency of an event is defined as the number of times that the…