06/24/20

Given X~N(22,5)
(a)Find x1 given z1 = -1.4(b)Find x2 given z2= 2.5
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06/24/20

. Given Z~(0,1).
(a)Calculate p (z> 2.37)(b)Calculate P (-1.28<z<1.28)(c) Find z1 given P( Z < z1) =.4562
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06/24/20

Given X~N(21,4)
(a)Find the z-score for (b)Would x= 10 be considered usual, unusual, or very unusual?
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06/24/20

A worker invested ​$21,000 in two​ accounts, one yielding 7% interest and the other yielding 11%. If he received a total of​ $1830 in interest at the end of the​ year, how much did he invest at 7%
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06/24/20

(a) Is it possible to construct two noncongruent right triangles which each have one acute angle measuring 75 and a leg of 5cm on a side of the 75o angle?

(a) Is it possible to construct two noncongruent right triangles which each have one acute angle measuring 75o and a leg of 5cm on a side of the 75o angle?(b) Is it possible to construct two... more
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06/23/20

Geometry Proofs
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06/23/20

A bag contains 9 red marbles, 7 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red?
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06/21/20

Compute the probability .9
According to Masterfoods, the company that manufactures M&M’s, 12% of peanut M&M’s are brown, 15% are yellow, 12% are red, 23% are blue, 23% are orange and 15% are green. You randomly... more
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06/21/20

use the following probabilities to answer the question p(B/A)=
use the following probabilities to answer the question.P(A)= 0.68, P(B)=0.22, P(A and B)=0.10P(B/A)=?
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06/20/20

what is the probability that at least one then=m has been vaccinate?
in a large population, 52% of the people have been vaccinated. if 5 people are randomly selected, what is the probability that at least one of them has been vaccinate?
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06/20/20

Question in statistics and probability help on thermostat.
Readings on a thermometer are normally distributed with a mean of 0C and a standard deviation of 1.00.What is the probability that a randomly selectedthermometer reads: less than 0.45, greater than... more
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06/20/20

Jordan nade 8 out of free throws in his last basketball gane. Estimate the population mean that he will make his free throws.
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06/20/20

The following table represent the number of dogs per household in a small town. Dogs 0 1 2 3 4 5 Households 1491 425 168 48 29 14
Given x={0,1,...,5} Are any the these events unusual? Explain.
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06/20/20

Decide whether or not the following experiment is binomial. Explain.
A state lottery randomly chooses six balls, without replacement, numbered 1-40. You choose 6 numbers and purchase a lottery ticket. The random variable x represents the number of matches on your... more
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06/20/20

Decide whether the following random variable 𝑋 is discrete or continuous. Explain
(a) Let 𝑋 represent the number of books in a university library.(b) Let 𝑋 represent the length of time it takes to get to work.
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06/20/20

NEED HELP PLEASE HELP ASAP
Why are the lines in this picture parallel? Group of answer choicesA.They both lie in the same plane.B.They both travel on forever and ever.C.They are both the same size.D.They are equal width... more
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06/20/20

PLEASE HELP HELP ME WITH THIS

Which postulate explains why angle PQR would be 140 degrees in the picture below? Group of answer choicesA.interior angles postulateB.addition postulateC.sum angle postulateD. angle addition postulate more
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06/20/20

A two sided coin is flipped in a six sided number cube is rolled.find(tails,5)
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06/20/20

Angles please help with this I need help
What are angle 2 and 3 in the picture below referred to as? Group of answer choicesA.alternate exterior anglesB.vertical anglesC.interior anglesD.corresponding angles
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06/20/20

Congruent Problem Please help me with this Problem I need help Now

If you are given that NK is congruent to NL, what do you know from that statement? Group of answer choicesA.NK > NLB.NK = NLC.NK + NL = KLD. NK < NL
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06/19/20

Counter Examples Pleas Help With this now

which sentence is like be a good counter example to this statement ?A line can exist in only one plane.A. a line intersects one plane and then another B. A line is parallel to one plane at a time... more
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06/19/20

i need help with this problem please!
person taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 765. find a linear function,... more
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06/19/20

What's the meaning of "flat landscape"? Is there any synonym for it?
For context: Today you will travel to a small hill surrounded by flat landscape.
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06/18/20

Geometry: Area of a circle question
How can I use the moving and additivity principles about areas when we are discussing about circles?
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06/18/20

Math reading problem, Fraction conversion.

In 2 minutes, a conveyor belt moves 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt moves the same quantity of cans the same distance in 22 minutes. If... more
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