12/01/19

probability and statistics

Find the probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one trial is 9%. Round to the nearest tenth of a percent
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12/01/19

Dative or Gentive when to use them and what is the difference?
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11/26/19

What sample size is needed to give a margin of error of 4% with a 95% confidence interval? Sample size =

What sample size is needed to give a margin of error of 4% with a 95% confidence interval?Sample size = 
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11/26/19

It was a mid sem exams given to us as a home work so please help me solve it. Thanks!
acceptedQ 1. If X and Y are random variables whose joint density function is the function f given as  4xy, 0<x<1,0<y<1 f(x,y) =0, otherwiseCompute the following:(a) Expected values of... more
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11/26/19

Consider the work below for verifying the given identities. One step in each identity is missing. Fill in the box showing the correct work for the missing step
First Stepcot θ sec θ csc2 θ - cot3 θ sec θ = csc  θSecond Step (missing step)Third Stepcot θ sec θ (1) = csc θFourth Stepcos θ 1------- * ------ = csc θsin θ... more
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11/26/19

The incenter is the point of concurrency that is equidistant to the ___________ of the triangle.
The incenter is the point of concurrency that is equidistant to the ___________ of the triangle.-Fill in the blank question
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11/25/19

Need help solving this question

A bag contains 5 red marbles, 7 white marbles, and 5 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that... more
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11/22/19

Please respond!!!
PLEASE ANSWER ASAP THANK YOU!!If a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 shots?show work please
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11/19/19

Margin of Error with confidence interval only
Suppose a 95% confidence interval is given by (15,20) the margin of error is:
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11/19/19

if f(x) = 2 [[x]] find f(-1/4)
A) -2B) -1/2C) 0D) 1/2
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11/17/19

Conditional Probability in Statistics
Calculate each conditional probability.A six sided die is rolled. What is the probability of rolling a two, assuming that you rolled an even number?
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11/17/19

et 0 be an angle in quadrant IV such that cot0=-(12)/(5). Find the exact value of sin0 and sec0
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11/17/19

A call for a taxi reveals

A call for a taxi reveals that the arrival will be sometime between 7:00 and 7:20 (continuous uniform RV). Find the probability that the taxi will arrive i) before 7:07, ii) after 7:12, ... more
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11/16/19

I need help with this stats question. I need steps to show how to do it on my TI-83.
A normally distributed population has a mean of 76 and a standard deviation of 16. Determine the probability that a random sample of size 38 has an average less than 75. Round to four decimal places.
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11/14/19

Find the accumulated present value of an investment over a 9 year period if there is a continuous money flow of $10,000 per year and the interest rate is 1.5% compounded continuously.
Find the accumulated present value of an investment over a 9 year period if there is a continuous money flow of $10,000 per year and the interest rate is 1.5% compounded continuously.
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11/14/19

Standard deviation question, please show me how to resolve
A sample of size n=84 is drawn from a population whose standard deviation  is σ= 32. Round the answer to at least three decimal places.The margin of error for a 95% confidence interval for σ ?If... more
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11/11/19

Application of growth/decay

5) You buy a car for $12.500. You had to take out a loan for the full amount. The loan you got is a 72 month loan. The interest rate on the loan is 2.85% compounded monthly. What is the amount you... more
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11/10/19

MATH EMERGENCY TRIANGLE CONGRUENCY IS THIS SSA OR SAS
IS THIS CONGRUENT BY SSA OR SAS
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11/10/19

How to find at least one with replacement ?

Angel has 7 DVD movies on a shelf , 4 dramas, 2 science fiction movies, and 1 comedy . Two movies will be selected at random . Determine the probability of selecting at least one drama movie with... more
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11/08/19

A boat is pulled into a dock by means of a rope attached to a pulley on the dock.....
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the front of the boat, which is 8 feet below the level of the pulley. If the rope is pulled... more
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11/07/19

When rolling 3 standard number cubes, the probability of getting all three numbers to match is 6216. What is the probability that the three numbers do not all match? Explain your reasoning.
When rolling 3 standard number cubes, the probability of getting all three numbers to match is 6216. What is the probability that the three numbers do not all match? Explain your reasoning.
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11/07/19

Two balls are picked at random from an urn containing 5 red balls and 6 blue balls (without replacement). (a) What is the probability that the balls are the same color? (b) What is the probability at
Two balls are picked at random from an urn containing 5 red balls and 6 blue balls (without replacement). (a) What is the probability that the balls are the same color? (b) What is the probability at
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11/06/19

Quadratic formula
I have a vertex of (2,2) and a y int of (0,2) what’s the quadratic equation!
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11/05/19

Find the area of the largest rectangle with one corner at the origin,
Find the area of the largest rectangle with one corner at the origin, the opposite corner in the first quadrant on the graph of the parabola f(x)= 162-6x^2  and sides parallel to the axes. The... more
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11/05/19

If P(A) = 1/3 and P(B|A') = 1/4, what is P(AUB)?
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