08/24/22

Compatible with 5(3+7)
what is compatible with the sum 5(3 + 7) 
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08/21/22

One prominent physician claims that 70% of those with lung cancer are heavy smokers. If his assertion is correct, find the probability that out of 10 such patients recently admitted to a hospital
(a) more than half are heavy smokers (b) exactly 4 are heavy smokers (c) less than 2 are non- smokers
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08/18/22

segment and angle addition

T,U and V are collinear: suppose U is between T and V and that the following is true: TU = 7x-4, UV = 6x+10 and TV = 45. find TU
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08/15/22

Statistics homework

A national study found that college students with jobs worked an average of 22 hours per week. The standard deviation is 9 hours. A college student with a job is selected at random. Find the... more
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08/13/22

1:Use the following probabilities to answer the question. Don't round; enter your answers as ratios
P(A)=0.4  , P(B)=0.65 ,  and  P(A and B)=0.2P(B∣A)=______  P(notB∣A)= ________P(notB∣notA)= _________
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08/13/22

Probability and statistics
The basketball player Steph Curry is a great free throw shooter. In fact, his shots are independent and all have probability 0.9 of being successful. Suppose he takes 8 shots in the next game.... more
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08/09/22

Statistics HW Question!
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 43 farming regions gave a sample mean of  = $6.88 per 100 pounds of watermelon. Assume that 𝜎 is... more
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08/04/22

What's the maximum and minimum number of points of intersection of 3 lines?
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08/03/22

Discrete probability distribution

You are given the following discrete probability distributions: X        0        1          2            3 P(X)  0.10   0.20     0.30      0.40 A. Compute the mean(expected value) B. Compute the... more
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08/03/22

Statistics probability

Suppose that the number of a village development committee have been categorized as shown in the following... more
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08/01/22

At a certain time of day, a 6 ft. tall person casts a 4.35 ft. shadow. If Hyperion casts a 274.8 ft. shadow at the same time, how tall is Hyperion?
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08/01/22

A roller coaster casts a shadow that is 40 feet long. If a 5.25 feet tall person casts a 3-foot shadow, how tall is the roller coaster?
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08/01/22

The perimeter is 54 m. The apothem is 3\sqrt(3). To the nearest tenth, what is the area of this regular polygon?
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08/01/22

The area is 100 cm squared. The apothem is 5 cm. What is the perimeter of this regular polygon?
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07/28/22

90% Confidence Interval for True Population Proportion
Suppose a mobile phone company wants to determine the current percentage of customers aged 50+ who use text messaging on their cell phones. How many customers aged 50+ should the company survey in... more
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07/27/22

Statistics Confidence Intervals - Population Mean no Given
The population standard deviation for the age of YZ College students is 15 years. If we want to be 95% confident that the sample mean age is within two years of the true population mean age of YZ... more
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07/27/22

Likelihood of Jackson Browne songs coming up in massive playlist
Hello!Okay here goes:I have a Spotify playlist. It has 1,675 songs on it. Only 5 of those are by Jackson Browne.I listened to 40 songs yesterday.4 of them were by Jackson Browne. What are the... more
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07/25/22

Pre algebra help
Y is inversely proportional to the square of x. If y=5 when x=3, then what is y when x is 8
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07/25/22

Hypotenuse question

a right triangles hypotenuse is 10 inches long. The length of one leg of a right triangle is 2 inches more than the second leg. What are the lengths of the legs of the triangle
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07/24/22

Please help. Any help will be greatly appreciated
A boat travels 52 mi upstream against the current in the same amount of time it takes to travel 78 mi downstream with the current. If the current is 5mph, what is the speed of the boat in still... more
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07/21/22

week 3 10 question
Solve the following logarithmic equation:log7x + log7(3x-2) = 0Be sure to check all of your solutions in the original equation.please show steps
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07/21/22

Of the water lilies in the pond, 43% of them are yellow and The others are white. A frog randomly jumps onto a lily. Find the probability of the complement of the frog landing on a yellow lily. round!
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07/21/22

Statistics - Required Sample Size for a Given Error
I solved following question, but I'm not sure whether I've taken the right approachAny help is highly appreciated!Question:An article in the Journal of Agricultural Science [“The Use of Residual... more
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07/21/22

Math Question #6
Suppose we take a sample of size 229 from a population with p = 0.71.What is the standard deviation of the sampling distribution? Part 2:Suppose you want to lower the standard deviation to 0.01,... more
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07/21/22

Math Question #5
A manufacturer knows that their items have a lengths that are skewed right, with a mean of 8.6 inches, and standard deviation of 2.6 inches.If 41 items are chosen at random, what is the probability... more
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