Statistics 8.2

Identify the type I error and the type II error that corresponds to the given hypothesis.The proportion of settled medical malpractice suits is 0.32.   Which of the following is a type I... more

Tchebysheff's Theorem

Let Y be a random variable with p = 10 and o2 = 4. Use Tchebysheff’s theorem to find a) A lower bound for P(6 < Y < 14)b) The value of C for which P(IY – 10I greater or equal to C) less than... more

The number of girls varies directly as the number of boys and inversely as the number of teacher there were 20 teachers and 10 boys,

How many boys were there when there are 10 girls and 100 teachers?   ☝ADDITION TO THE QUESTION 😊   Thanks alot!💖

Mixture and alligation

Two vessels a and b contains milk and water respectively the volume of milk in a and the volume of water in b are in the ratio 4:5. Now x litres of milk from A is poured into b and then y litres of... more

How to determine an exponential function for this problem.

the population of deer in a region has a maximum value of 300 due to resources and predators. in 2014, the population of deer is 220 and increases in subsequent years to a level of 255 in 2016.... more

How do you find the perimeter of a triangle when the area is given

 fghjyjrtjjtyjjjjjjjjjjjjjjjjjjjjjjjjyhggfgtert5

11/01/17

Write the equation in​ slope-intercept form.

Write the equation in slope-intercept form.b. Write the equation in the form Ax+By=C, where A, B, and C are integers and A>0. (7,−8); 7x+3y=9  

There are 100 numbers listed. What are the odds that if 10 numbers are selected, that at least one is 20 or less?

It's a probability question that I can't seem to figure out.

11/01/17

Ratio and proportion

On entire earth the ratio between land and water is 1:2 and At northern hemisphere this ratio is 2:3 . what will be the ratio of land with water at southern hemisphere...?

10/30/17

Apr and investment

Madison invest in a plan that has an APR of 6% in a 14% APR account she inves $450 more than she invested in the 6% account if the total interest from then vestiment is $321 after 1 year how much... more

10/30/17

This is an equation. (-7)(-17)=1 Select all of the statements that explain why this equation is true. Answer Choices The fraction -17 is the multiplicative

This is an equation.(-7)(-17)=1 Select all of the statements that explain why this equation is true.Answer ChoicesThe fraction -17 is the multiplicative inverse of -71 .A. The fraction -17 is the... more

10/30/17

1/8 X ?= 1 Part 2 Select all the statements that explain why the missing value you chose for Part A makes the equation true. Answer Choices A. The pro

1/8 X ?= 1 Part 2Select all the statements that explain why the missing value you chose for Part A makes the equation true.Answer ChoicesA. The product of a rational number and its multiplicative... more

There is total batch of 100 products. 10 of the products are faulty. 2 products are taken randomly

There is total batch of 100 products. 10 of the products are faulty. 2 products are taken randomly from the batch without replacement for them. Variable X is the total number of faulty products... more

10/29/17

if cos theta = -2/6 and tan theta < 0, then what are all the other 5 trigonometric ratios

if cos theta = -2/6 and tan theta < 0, then what are all the other 5 trigonometric ratios tan(theta)= ? sin (theta) =? sec (theta) =? csc (theta) =? cot (theta) =?

10/27/17

theta equals 22 degrees, b=25

fIND THE ALTITUDE OF THE ISOSCELES TRIANGLE SHOWN IN THE FIGURE.  

10/26/17

While on vacation in Washington DC, the cab ride for the Dulles airport to the hotel is 15 miles.

while on vacation in Washington DC, the cab ride for the Dulles airport to the hotel is 15 miles. The total cost of the cab ride was $25.50. the cabbie charges $1.50 per mile for the entire trip. 

10/26/17

Question about Statistcs

Assuming that he weights of a newborn babies at a certain hospital are normally distributed with mean 6.5 pounds and standard deviation 1.2 pounds, how many babies in a group of 80 babies from this... more

What is a linear equation for this situation? What domain and range are reasonable for the function?

The drama club plans to attend a professional production. Between 10 and 15 students will go. Each ticket cost $25 plus a $2 surcharge. There is a one time fee of $3 for the entire order. What is... more

10/26/17

2x+3y and 17-4y

find the vaulues of x and y in the parallelagram below

Probability and Stats

You are offered a chance to play a game. The rules are simple. There are 100 cards, face down. Fifty-five of the cards say "win" and 45 of the cards say "lose." You begin with a bankroll of... more

Probability and Stats

At the entrance to a casino, there are two slot machines. Machine A is programmed so that in the long run it will produce a winner in 10% of the plays. Machine B is programmed so that in the long... more

10/25/17

solving equations involving fractions and decimals

3/4 + 1/2b = -3b

were on a mission to gather data on 3 varieties of birds. One variety’s average weight was .25 lbs, another’s was .5 lbs, and the last was .75 lbs.

 A total of 430 birds were captured and released resulting in 235 lbs of birds being cataloged. There were twice as many of the 3rd variety cataloged as the sum of the first two varieties less... more

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