subject
Mathematics, 02.06.2021 19:00 sanm378599

A test was given to 120 students, and the scores approximated a normal distribution If the mean score was 72 with a standard deviation of 7, approximately what percent of the
scores were 65 or higher?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 16:20
Which equation matches the graph shown ?
Answers: 2
question
Mathematics, 21.06.2019 18:30
The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.
Answers: 1
question
Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
question
Mathematics, 21.06.2019 22:30
Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?
Answers: 3
You know the right answer?
A test was given to 120 students, and the scores approximated a normal distribution If the mean sco...
Questions
question
English, 10.10.2019 23:00
Questions on the website: 13722362