Mathematics, 19.01.2020 03:31 markleal4022
Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe. suppose that the standard deviation is 1.8 hours and the amount of time spent alone is normally distributed. we randomly survey one 4-year-old living in a rural area.
60% of the children spend at least how long per day unsupervised?
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 14:00
Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.
Answers: 2
Mathematics, 21.06.2019 16:30
896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631
Answers: 2
Mathematics, 21.06.2019 17:40
The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?
Answers: 2
Mathematics, 21.06.2019 18:30
If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.
Answers: 1
You know the right answer?
Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the uns...
Questions
Arts, 05.01.2021 22:10
Mathematics, 05.01.2021 22:10
Physics, 05.01.2021 22:10
Advanced Placement (AP), 05.01.2021 22:10
Biology, 05.01.2021 22:10
Chemistry, 05.01.2021 22:10
History, 05.01.2021 22:10
