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

As a part of a class project, a teacher brings a jar of 200 jawbreakers of three different colors, orange, red and white. Students must estimate the number of white jawbreakers in the jar. Suppose that after the jar is shaken well, one student draws 30 jawbreakers from the jar, of which 9 are orange, 11 are red and 10 are white. Give the students sample statistic for the percent of white jawbreakers in the jar. Round to the nearest whole #.

In a survey of 3088 adults aged 57 through 85​ years, it was found that 87.1​% of them used at least one prescription medication. How many of the 3088 subjects used at least one prescription​ medication?

In a survey of 3121 people, 412 are under-vaccinated. What is the proportion of under-vaccinated people in the local population?

93% of all dolphinesare cured of a particular bacterial infection. if 6 dolphines are treated and 3 are cured

Rangers tagged and released 250 small mouth bass into a Round Lake. A month later, fishermen on the lake were surveyed. They reported catching 50 small mouth bass, 5 of which had tags. Using this sample, estimate the small mouth bass population in the lake.

A survey was conducted in a section on which subject they like best. 55 likes Math, 50 likes English, 51 likes Science, 32 likes Mathematics and English, 28 likes Mathematics and Science, 25 likes English and Science and 10 likes Mathematics, English and Science. How many were there in the section?

Approximately 29% of music lovers like Country Music. Of those who do, 96% do not have mild brain damage. What percent of music lovers like Country and do not have Brain Damage?

Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5

During a basketball practice mai attempted 40 free throws and was successful on 25% of them. How many successful free throws did she make?