subject
Mathematics, 12.03.2021 06:20 kaliyab191

Standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was 21.2 and the standard deviation was 5.7 The test scores of four students selected at random are 15,23,7 and 35 . Find the​ z-scores that correspond to each value and determine whether any of the values are unusual. The​ z-score for 15 is

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?
Answers: 2
question
Mathematics, 21.06.2019 18:00
What is the solution to the equation in the & show work i’m very
Answers: 1
question
Mathematics, 21.06.2019 18:30
Solve the inequality and graph 6j - 7 < 5
Answers: 1
question
Mathematics, 21.06.2019 22:00
If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left
Answers: 2
You know the right answer?
Standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was 21....
Questions
question
History, 30.10.2020 16:00
question
Mathematics, 30.10.2020 16:00
question
Arts, 30.10.2020 16:00
question
Biology, 30.10.2020 16:00
question
Mathematics, 30.10.2020 16:10