5,341 Answered Questions for the topic probability

Probability Math Algebra 2

07/10/21

a) Write a power regression equation for this set of data, rounding all values to three decimal place.
The table below shows the results of an experiment involving the growth of bacteria.  Time (x) (in minutes)    1   3     5     7     9     11      Number of Bacteria... more
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Probability Math Algebra 2 Mathematics

07/10/21

You take true/false test that has 60 questions.If you guess on each question, and have the same chance of guessing correct on each question, what is probability to get atleast 65% of questions correct
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Probability Math Algebra 2 Mathematics

07/10/21

Determine the probability of landing on tails at most 33 times if you flip a fair coin 80 times. Round your answer to the nearest tenth.
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Probability

07/08/21

Basic Probability
Our friend Deepika needs some winter clothing, so she goes to her local clothing store to see what choices they have. Looking around the store, she sees that they have two types of winter items:... more
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Probability

07/07/21

independent and dependent events
In a carnival game called Spot the Spot, the player has to drop five disks onto a red circle. The disks must cover it completely for the player to win.    The probability that a skilled player can... more
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Probability

07/07/21

20 Different Socks of Two Types, How Many Picks to Get a Pair 100% Sure
There are 20 different socks, of two types, in a completely dark room. What is the minimum number of socks you should grab to ensure you have a matching pair?
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Probability

07/06/21

Maths questions
At a certain store the manager has determined that 40% of customers pay cash and 60% of customers pay by debit card. (No other method of payment is accepted, and no one is allowed to pay with both... more
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Probability

07/04/21

One urn contains 4 white balls, 4 black balls, and 4 red balls. 6 balls are removed from that urn. Determine the probability of 2 balls of each color being drawn.

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Probability Math Statistics

07/03/21

Construct a frequency distribution and a relative frequency histogram for the data set using five classes. Which class has the greatest relative frequency and which has the least relative​ frequency?
Ratings from 1​ (lowest) to 10​ (highest) from 36 taste testers2 5 9 1 10 10 5 10 68 8 6 5 10 1 4 9 44 5 3 5 6 2 3 10 19 4 ... more
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Probability Math Statistics

07/03/21

Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns.
Number of​ classes: 8 Data​ set: Reaction times​ (in milliseconds) of 30 adult females to an auditory stimulus 428 293 382 338 514 423389 426 372... more
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Probability

07/02/21

Probability of a "hit" when revealing 10 cards.
The premise is: I have 10 cards to flip over. 5 are from set A and 5 from set B. One of these 10 cards has a special marking on it. My question is, what is the appropriate order to flip cards from... more
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Probability

07/01/21

A really hard question (for me at least) of my homework
The research and development department of a manufacturing company has identified 4 possible types of defects for a new product (A, B, C, D). The identified probabilities are 0.4, 0.3, 0.05, and... more
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Probability

07/01/21

Simplex Method Linear Equations

minimize c=2s+t+3u Subject to s+u≥1002s+t≥50s≥0, t≥0, u≥0
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Probability

06/30/21

Four couples are to be seated in a straight line in such a way that the couples sit together. In how many ways can this be done?
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Probability

06/29/21

Probability Question......
I have this probability question that is driving me bonkers.....The probability that a high school senior owns a laptop is 0.6. The probability that a high school senior owns a car is 0.2. The... more
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Probability

06/28/21

License Plate - Probability Conditional
Hello,What is the probability of getting a license plate that has a repeated letter or digit if you live in a state in which license plates have two letters followed by four numerals? (Round your... more
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Probability

06/24/21

Medical Probability question
Your friend suggests the following as a way of doing medical testing: Just tell each person "tested" that he or she has the disease—the test result is always positive. What is the sensitivity and... more
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Probability

06/24/21

HOW MUCH DO TIRES COST
A company manufactures tires at a cost of $40 each. The following are probabilities of defective tires in a given production run: probability of no defective tires: 10%; probability of 1% defective... more
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Probability Statistics

06/24/21

How do I calculate this problem and is there a way to do it on a TI-84plus?
if there is a 35% chance of rain every day for the next four days, what is the probability that it will rain every day for the four days?
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Probability

06/24/21

i need help on expected values...
Each question on a multiple-choice exam has five choices. One of the choices is the correct answer, worth 4 points, another choice is wrong but still carries partial credit of 1 point, and the... more
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Probability

06/23/21

can someone please help me
A company produces products at a cost of $38 each. Defective products cost an additional $15 each to repair. The probability of no defective products is 80%. The probability of 5% defective... more
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Probability

06/23/21

Permutation and combination
Five persons are chosen at random from a group of ten persons consisting of four men and six women. Calculate the probabilities that the four persons chosen will:1. Consist of five women.2. Consist... more
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06/22/21

What is the mathematical expectation for this game?
Suppose you toss a coin and will win $5 if it comes up heads. If it comes up tails, you toss again. This time you will receive $10 if it comes up heads. If it comes up tails, toss again. This time... more
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06/22/21

What is the expected height (in inches)?
Heights (in inches) obtained by a group of people in a random survey are reported in the following... more
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Probability Statistics

06/21/21

Find the critical values.
An MP claims that the average number of acres in his province’s State Parks is less than 2000 acres.A random sample of five parks is selected and the number of acres is shown below:959, 1187, 493,... more
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