subject

Mathematics, 28.07.2019 17:00 julionavedo21

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.6 and the standard deviation was 8.7. if 18 classes were selected at random, find the probability that the class average is less than 80. a. 0.7427 b. 0.0396 c. 0.0235 d. 0.1730

ansver

Answers: 1

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 17:30

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Answers: 1

question

Mathematics, 21.06.2019 19:30

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Answers: 2

question

Mathematics, 21.06.2019 20:00

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Answers: 2

question

Mathematics, 21.06.2019 21:00

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

Answers: 2

You know the right answer?

Percentage grade averages were taken across all disciplines at a particular university, and the mean...

Questions

question

Mathematics, 02.12.2019 18:31

Find the measures of two angles, one positive and one negative, that are coterminal with pi divided by seven....

question

Mathematics, 02.12.2019 18:31

Prove that y=x² at x=0 has both a local and global minimum using first derivative test. i can prove it with a graph looking at it visually but how wou...

question

English, 02.12.2019 18:31

What is the central idea communicated in this paragraph? a) that the dashwood family is well-established and respected by many b) that m...

question

English, 02.12.2019 18:31

Break down the word into parts...

question

Mathematics, 02.12.2019 18:31

Write an equation that models the sequence -2, -6, -18, -54,...

question

Geography, 02.12.2019 18:31

Click to review the online content. then answer the question(s) below, using complete sentences scroll down to view additional questions o...

question

World Languages, 02.12.2019 18:31

Hi someone from norway? and have a summary of a novel called "hviskeleken"? by ivar espenes...

question

Mathematics, 02.12.2019 18:31

If the cube has a volume of approximately 561.5 cm, what is the approximate area of the cross section shown?...

question

History, 02.12.2019 18:31

How did americans react to the british searches...

question

Physics, 02.12.2019 18:31

M! show work! in a collision, kara less who was traveling at 11 m/s while texting in her 1300 kg car, is struck by another vehicle and finds hersel...

question

English, 02.12.2019 18:31

Which statement explains the validity of the resource? o the resource is unreliable because it is not related to the topic that bra...

question

Mathematics, 02.12.2019 18:31

Maya purchased a t. v for rupees 32,400 and spent rupees 500 on repair. she sold it for rupees 40,000.calculate her gain....

question

Physics, 02.12.2019 18:31

When it is 125 m above the ground, a rocket traveling vertically upward at a constant 7.60 m/s relative to the ground launches a secondary rocket at a...

question

Chemistry, 02.12.2019 18:31

Nitrogen monoxide is produced by combustion in an automobile engine. what volume of oxygen gas is required to react completely with 2.48 mol of nitrog...

question

Mathematics, 02.12.2019 18:31

An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 45 hour...

question

Mathematics, 02.12.2019 18:31

Match each item in the lef column with the correct item in the right column. p-value = 0.02 a. do not reject h0 at α = 0.1 p-value = 0.07 b. reject h0...

question

Mathematics, 02.12.2019 18:31

Let f : [a, b] → r be a continuous function. let ε > 0 be a constant. for x ∈ [a+ε,b−ε], define g(x) : = 1 2ε z x+ε x−ε f. a) show that g...

question

Business, 02.12.2019 18:31

Uncovered interest rate parity states that the domestic return must equal the foreign return (fr), where fr = - i* + (ee – e)/e. this relationship can...

question

Mathematics, 02.12.2019 18:31

Acola-dispensing machine is set to dispense 10 ounces of cola per cup, with a standard deviation of 1.0 ounce. the manufacturer of the machine would l...

question

Business, 02.12.2019 18:31

When adding real estate to an asset allocation program that currently includes only stocks, bonds, and cash, which of the properties of real estate re...

More questions: Mathematics Another questions

Questions on the website: 13722361