Mathematics, 01.07.2021 02:10 dayanara72

A journal published a study of the lifestyle of visually impaired students. Using diaries, the students kept track of several variables, including the number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 9.41 hrs and a standard deviation of 2.09 hrs. Assume that the distribution of the number of hours of sleep for this group of students is approximately normal. A. Find P(8< x<10)

B. Find the value a for which P(x < a) = 0.3

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 12:50

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

Answers: 1

Answer

Mathematics, 21.06.2019 15:00

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

Answers: 1

Answer

Mathematics, 21.06.2019 15:30

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

Answers: 3

Answer

Mathematics, 21.06.2019 17:40

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Answers: 2

Answer

You know the right answer?

A journal published a study of the lifestyle of visually impaired students. Using diaries, the stude...

Questions

Chemistry, 28.09.2019 11:10

Carbon disulfide is formed by the reaction of coke (carbon) with sulfur dioxide. how many moles of cs2 will be generated if 8.0 moles of coke react wi...

Mathematics, 28.09.2019 11:10

Henry collects shells from the beach every day he is on vacation. each day he collects shells, he always collects three times as many white shells as...

English, 28.09.2019 11:10

Arrange the lines in the correct order to make a dialoguen when refusing invitiations. then make similar dialogues and be ready to role-play them.

Mathematics, 28.09.2019 11:10

How many colonist per square mile live across the appalachian mountains?...

History, 28.09.2019 11:10

Which cities was known as the byzantine empire's economic and religious center...

History, 28.09.2019 11:10

Negative tropism is described as 1. growth towards a stimulus 2. growth away from stimulus 3. growth that is not affected by stimu...

Chemistry, 28.09.2019 11:10

Areversible reaction is a reaction that takes place in the (blank). if the reaction were to(blank) , the rate of the forward reaction would equal that...

History, 28.09.2019 11:10

What were some of the cultural characteristics of the ancient civilizations that flourished in the americas?...

Mathematics, 28.09.2019 11:10

Need with this question: orange juice concentrate is mixed with water in the ration 2: 5. this mixture is then mixed with lemonade in the ratio...

Social Studies, 28.09.2019 11:10

All of the following statements about the articles of confederation are true except: a. they gave each state one vote in congress. b. they were the f...

History, 28.09.2019 11:10

What is a engaging description....

Health, 28.09.2019 11:10

How many alcoholic commericals do teens see each year while watching tv...

Biology, 28.09.2019 11:10

Where in a lake is the benthic zone? a. above the limnetic zone b. on the surface near the middle c. along the bo...

Mathematics, 28.09.2019 11:10

If four times a number plus 3 is 11, what is the number? a. 4 b. 5 c. 16 d. 2...

Business, 28.09.2019 11:10

Jorge has $300 for work he performed. he expects to spend the money in the next few weeks to buy a new bike. which type of account will be best for jo...

History, 28.09.2019 11:10

Which of the following statements about ecosystems is false? a.) in the process of energy conversions within an ecosystem, energy is even...

Chemistry, 28.09.2019 11:10

Compare and contrast the properties of potassium and iodine with the compound ki...

Mathematics, 28.09.2019 11:10

Which is a unit rate 1 ) $4 for a bucket of popcorn 2 ) $20 for 5 sandwhiches 3 ) $30 for 2 concert tickets ...

History, 28.09.2019 11:10

According to the court's decision, what does the constitution have to say about people of "the african race"?...

Biology, 28.09.2019 11:10

Which of the following statements is true? a. biotic factors are nonliving components of an ecosystem. b. abiotic factors are living components of an...

More questions: Mathematics Another questions