Mathematics, 27.12.2019 00:31 cedrahasouneh10
Jim tree sells trees. the mean length of the trees purchased was 68 inches with a standard deviation of 10 inches. jim wants to know what percent of his sales were more than 84 inches tall. he can use the standard normal distribution to him.
1. he asks, "what is the mean? " mean = inches.
he thinks, "what is the expected distribution about the mean? " ( 38 inches 48 inches 58 inches 68 inches 78 inches 88 inches 98 inches. )
2. he thinks, " % of the sales will be below 68 inches." but, he needs to know the percentage between 68 and 84 to add to that. so, he calculates a z-score = = , and finds the percentage associated with 1.6 in the table.
3. this is (to the nearest %. now jim knows that % of his sales were 84 inches or less.
4. therefore, the remaining % were more than 84 inches.
Answers: 1
Mathematics, 21.06.2019 20:00
Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.
Answers: 2
Mathematics, 21.06.2019 23:30
If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.
Answers: 2
Mathematics, 22.06.2019 04:30
Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0). what are the directrices?
Answers: 3
Mathematics, 22.06.2019 05:10
Find the coordinates for the center for this circle (x+3)^2+(y-5)^2=25
Answers: 3
Jim tree sells trees. the mean length of the trees purchased was 68 inches with a standard deviation...
Biology, 14.12.2021 01:00
Chemistry, 14.12.2021 01:00
SAT, 14.12.2021 01:00
Biology, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
History, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
Biology, 14.12.2021 01:00