03/23/21

What is the probability distribution?
A jar contains 13 coins: 7 pennies, 2 nickels and 4 dimes. A child selects 2 coins at random without replacement from the jar. Let X be the sum of the value of the 2 coins. Determine the... more
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03/23/21

Probability in math
1. Find the probability of getting 3 heads when tossing a die thrice.2. A coin is tossed once and a die is also rolled once. What is the probability of getting a head and the number 6?3. If a coin... more
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03/22/21

Binomial Random Variable
A binomial random variable x is based on 15 trials with the probability of success equal to 0.4. Find the probability that this variable will take on a value more than 2 standard deviations above... more
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03/22/21

This question is based on normal distribution.
In the general population, IQ is normally distributed with a mean 100 and standard deviation 15.(a) If you select a person at random from the population, what is the probability that their IQ is... more
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03/22/21

Prove the following indirectly using two-column form:
Given: BA ⊥ AN NI ⊥ AN Angle 2 ≇ angle 4Prove: Angle 1 ≇ angle 3
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03/22/21

The proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 53,7%.

What is the probability that in a random sample of 520 voters, less than 48,1% say they will vote for the incumbent?
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03/22/21

Point estimates Statistics
In a random sample size of 60, 38 people say they generally get less than 8 hours of sleep a night. calculate the point estimates p and q.
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03/21/21

The margin of error for a confidence interval is 10. If the sample size is multiplied by 100, what’s the new margin of error?
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03/21/21

Please help with algebra 2

solve. Leaver your answer(s) as fractions or or round two decimal places. (3x+2) to the 2/3 power= 4 Please show al work .
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03/21/21

For the following pairs, indicate which do not comply with our rules for setting up hypotheses, and explain why. For those that don’t comply, change Ha to make it correct.
a. H0:𝜇= 15,Ha:𝜇=15b. H0:𝑝 =0.4,Ha:𝑝 >0.6c. H0: 𝜇 =123, Ha: 𝜇 < 123d. H0: 𝜇 =123, Ha: 𝜇 = 125e. H0:𝑝̂=0.1,Ha:𝑝̂=0.1
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03/21/21

Ap stat question

Explain why the statement 𝑥̅ = 50 is not a legitimate hypothesis.
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03/20/21

In right △ABC, m∠B = 30°. Also, AB = 14 3 and AD bisects ∠BAC. Find BD
In right △ABC, m∠B = 30°. Also, AB = 143  and AD bisects ∠BAC.Find BD.
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03/20/21

Find AB if AD = 3 and DC = 9.
In the figure, ∠ABC ≅ ∠ADB.Find AB if AD = 3 and DC = 9.
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03/20/21

She was _____ an array of questions during the interviews.
Options.put up withput forwardput overput through
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03/20/21

Frankly, I think expecting to be paid $1,000 a week in your first job is quite _____.
OptionNaive, innocent, youthful..
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03/20/21

The patient did not _____ the severity of his condition.
OptionClutch, grasp, latch, clinch.
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03/20/21

Some methods of waste _____ release pollutants into the atmosphere.
optionDisposal, deduction, ejection,clearance
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03/20/21

You are basing your opinion _____ that experience.
OptionIn, for, to, on, of, with, over,
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03/20/21

probability for a normal distribution
P(-1.80<z<.20)=..4207-.0359=.3848
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03/20/21

If CD = 10, CA = 12, and EB = 14, find CE.
△CDE ~ △CBA with ∠CDE ≅ ∠B.If CD = 10, CA = 12, and EB = 14, find CE.
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03/20/21

Geometry crime investigation
Some thief has taken a necklace from old Mrs. Hexagon. The culprit ranoff very fast, but not before some bystanders got a look at the culprit.Witness 1 (Mrs. Hexagon) -- "It all happened so fast!... more
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03/20/21

normal approximation to find probability
Use a normal approximation to find the probability of the indicated number of voters. In this​ case, assume that 108 eligible voters aged​ 18-24 are randomly selected. Suppose a previous study... more
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03/20/21

help with statistics
The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a standard deviation of 8.6 cm.a. Find the probability that an individual distance is greater than... more
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03/20/21

In a survey of 1126
In a survey of 1126 ​people, 750 people said they voted in a recent presidential election. Voting records show that 64​% of eligible voters actually did vote. Given that 64​% of eligible voters... more
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03/20/21

please help step by step
Prove algebraically what type of function this is (even, odd, or neither).  f(x)=-2x^4-12x^2
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