11/19/21

What is the probability that a group of five friends all have different birthdays?
type of problem: (counting methods and probability) (probability of an event not occurring given multiple opportunities.)
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11/18/21

Mathematical P and x
P(x>77.6)=P(x<70.9)=P(73.7<x<78.6)=n=74 mean=75standard deviation x =2
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11/18/21

Point estimate math
Determine the point estimate of the population proportion, The margin of error for the following confidence interval. lower bound is.439 upper bound is .721 n equals 1000The point estimate is?The... more
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11/18/21

the number of days required to build is the number of workers. One house was built in 57 days by 6 workers. How many days would it take to build a similar house with 19 workers?
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11/18/21

The length of a rectangular lawn is measured to twice its width...
The length of a rectangular lawn is measured to twice its width. The perimeter of the lawn is given as 30 m. Find the length and width of the lawn.
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11/18/21

A boat can travel 48 miles upstream in 4 hours...
A boat can travel 48 miles upstream in 4 hours. The return trip takes 3 hours. Find the speed of the boat in still water and the speed of the current.
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11/18/21

Triangle ABC is given by the points A (3, 2) , B (4, 4) , and C (5, 1). Choose YES or NO for each statement.
Triangle ABC is given by the points A (3, 2) , B (4, 4) , and C (5, 1). Choose YES or NO for each statement.The perimeter of ABC is 9.9 units.ABC is an equilateral triangleThe perimeter of ABC is... more
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11/17/21

Find the value of X
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11/17/21

Is it a verb or adv. phrase?
In a sentence like [She carefully read the book] is "carefully" part of the VP or is it an ADV.PH?
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11/17/21

shape with vertices located at negative 4 comma 0, 0 comma 4, 2 comma 2, negative 1 comma 2, and negative 1 comma 0 whats the area?
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11/17/21

proving angles congruent using two column proofs im really stuck
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11/16/21

Finding percentile
How will find the percentile for three or more students who scored the same points in their test?Ex.If a test is out of 20 marks and 10 students sat for the test.8,7,9,12,13,13,13,15,18,19How am I... more
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11/16/21

the measure of the seven angles in a nonagon measure 138 154 145 132 128 147 and 130. if the two remaining angles are equal in measure, what is the angle of each measure?
i need help i don't know what i'm supposed to do on this question because i wasn't here when my teacher taught it.
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11/16/21

two balanced dice are rolled, the probability that the sum of the upturned faces equals to 5
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11/16/21

Calculate the test-statistic, t with the following information. n1=40,    ¯x1=2.93,     s1=0.51,   n2=30,   ¯x2=2.88,   s2=0.66
Calculate the test-statistic, t with the following information.n1=40,   ¯x1=2.93,   s1=0.51,  n2=30,  ¯x2=2.88,  s2=0.66Rounded to 2 decimal places.
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11/15/21

binomial probability
Consider a card selected at a random and replaced. If this experiment is repeated 5 times, let us find the probability of selecting exactly 3 hearts. Use the binomial distribution. Also find out... more
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11/15/21

statistics question
You measure 36 textbooks' weights, and find they have a mean weight of 70 ounces. Assume the population standard deviation is 9.6 ounces. Based on this, construct a 95% confidence interval for the... more
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11/14/21

Geometry Locus Help
The locus of the endpoint of a minute hand 1.5 cm long during the length of 1 hour.
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11/13/21

Can someone please help me with this?
A sculpture on the shape of a square-based pyramid is being added to the courtyard of a building. A scale model of the sculpture has base sides of 5 feet and a height of 4 feet. Determine the... more
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11/13/21

stats homework help plzz
You measure 41 backpacks' weights, and find they have a mean weight of 49 ounces. Assume the population standard deviation is 12.8 ounces. Based on this, what is the maximal margin of error... more
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11/13/21

plz help me on my statistcs hw

The age when smokers first start from previous studies is normally distributed with a mean of 13 years old with a population standard deviation of 1.3 years old. A survey of smokers of this... more
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11/13/21

I need help on this question for my stats class plz

You measure 36 textbooks' weights, and find they have a mean weight of 37 ounces. Assume the population standard deviation is 10.4 ounces. Based on this, construct a 99% confidence interval for the... more
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11/13/21

To make the game fair, who should gain points if a 1 is rolled, and how many points should they gain?
A single six-sided die is rolled and point values are assigned to each outcome. The dice is rolled once and if the dice shows a 5 or a 6, Joe gains 6 points. If the dice shows a 2,3 or 4, Fred... more
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11/13/21

Find the probability that Fred will have a sum of 7, find the probability that Joe and Fred will both have the same sum, and find the probability that billy has a higher sum than 9.
Joe rolls two dice and adds the numbers showing. Fred then rolls two dice and adds the numbers showing.
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11/12/21

Geometry question
I just graphed these points on a coordinate plane and I need to find a fourth point to create a parallelogram. What 4th point can I use?x (0,0)y (5, 2)z (5, 7)Multiple... more
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