Mathematics, 19.03.2020 22:07 Kay6718
The scores of students on the ACT college entrance exam in a recent year had the normal distribution with mean =18.6 and standard deviation =5.9. a) What is the probability that a single student randomly chosen from all those taking the test scores 21 or higher? b) The average score of the 76 students at Northside High who took the test was x =20.4. What is the probability that the mean score for 76 students randomly selected from all who took the test nationally is 20.4 or higher?
Answers: 2
Mathematics, 22.06.2019 02:40
Arestaurant manager wanted to get a better understanding of the tips her employees earn, so she decided to record the number of patrons her restaurant receives over the course of a week, as well as how many of those patrons left tips of at least 15%. the data she collected is in the table below. day mon tue wed thu fri sat sun patrons 126 106 103 126 153 165 137 tippers 82 87 93 68 91 83 64 which day of the week has the lowest experimental probability of patrons tipping at least 15%? a. sunday b. saturday c. friday d. thursday
Answers: 1
Mathematics, 22.06.2019 03:00
Point m is located at (-4, -6). what is located 4 units from point m? ( its on a coordinate plane by the way. )
Answers: 2
Mathematics, 22.06.2019 04:30
Imade a beaded necklace that was 2/6 blue, 3/5 green and the rest were white. did the necklace have more blue or green how many white beads did it have.
Answers: 1
Mathematics, 22.06.2019 04:30
Fran has 7 sheets of paper for a coloring project. if she only uses 1/3of a sheet of paper per draing how many drawings can ahe make?
Answers: 1
The scores of students on the ACT college entrance exam in a recent year had the normal distribution...
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