Based on the following frequency distribution, what proportion of students had a grade of 60-69? Test Grades F 30-39 8 40-49 7 50-59 5 60-69 4 70-79 3 80-89 2 90-99 1

Q: mple in an amusement park showed an average expenditure of $10.30 for the evening. The average…

A: In this question, the concept of average is applied. Average The arithmetic mean is the ratio of the…

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: Grades in one subject will be computed using weighted average where the final project counts 25%,…

A: The given information is:The grades in one subject are computed using weighted average as…

Q: if 20% of vehicles are blue and 1/3 of blue vehicles are trucks what fraction of blue vehicles are…

A: 20% of vehicles are blue Convert 20% into fraction.

Q: If five out of every sixteen students prefer to write with pens over pencils, what proportion of…

A: Given that, five out of every sixteen students prefer to write with pens over pencils.The aim is to…

Q: A statistics professor administered an exam to three different classes. The 8:00 class had 20…

A: Given,n1=20x1 =82.4n2=24x2 =78.9n3=29x3 =87.3

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: The proportion of people who were caught after being on the 10 most wanted is obtained below:The…

Q: A software company is interested in improving customer satisfaction rate from the 54% currently…

A: Let p be the population proportion of customer satisfaction rate.Given that,Population proportion…

Q: What percentage of the blocks are red?

A:

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: For the given data n = ?

Q: What is the percentage of students weighing less than or equal too 203 pounds

A: Solution Given box plot tell us the five point summary of the data .

Q: A recent poll of 2940 corporate executives showed that the average price of their cars is $31,800…

A: Introduction: The poll consists of 2940 corporate executives. The average price of the cars owned by…

Q: who appear on the list that are actually caught. Step 1 of 2: Suppose a sample of 233 suspected…

A: Favorable Cases XX = 7272 Sample Size NN = 233233 The proportion of people who were caught…

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: Given that  Margin of error =E =1%=0.01 95% confidence.

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: From the given Information ,Sample size , n = 1453number of criminals captured , X = 392We have to…

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, below what…

A: From the given data The US population is 13% African American