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SECONDARY
STATISTICS AND PROBABILITY
HIGH SCHOOL PROBABILITY
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Calculus and Analysis
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Statistics and Probability
High school statistics
High school probability
Probability
Binomial probability
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High school probability Answers
Probability
asked 2021-03-12
A statistical investigation showed that adults in a particular country have an 80% chance of living to be at least 70 years old and a 50% chance of living to be at least 80 years old. What is the probability that an adult who just turned 70 will live to be 80?
Probability
asked 2021-03-11
Three students are arguing, Chad says, "I think the probability is 1 out of 2." Tien says, "No, it is 40 over 80." Falicia says, "It is 50%." What do you say to the students?
Probability
asked 2021-03-07
A hip joint replacement part is being stress-tested in a laboratory. The probability of successfully completing the test is 0.883. 11 randomly and independently chosen parts are tested. What is the probability that exactly two of the 11 parts successfully complete the test?
Binomial probability
asked 2021-03-06
When dealing with the binomial distribution, why are the possible values for the random variable always 0,1,2,3,…,n where n is the number of trials or sample size? Why can't we use negative values, or fractions, or numbers greater than n?
Probability
asked 2021-03-05
You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.85. With water it will die with probability 0.5. You are 90 % certain the neighbor will remember to water the plant. You come back from the vacation and the plant is dead. What is the probability that the plant died because neighbor forgot to water it?
Probability
asked 2021-03-05
[Graph]
P(red or yellow) 30%
P(not green)
Probability
asked 2021-03-02
Fruit Flles An experiment with fruit flies involves one parent with notmal wings and ooe parent with vestigial wings. When these parents have an of
\(\displaystyle\frac{{3}}{{4}}\) probabulty that the of
\(\displaystyle\frac{{1}}{{4}}/{4}\) probability of vestigial wings. If the parents give birth to five of
Probability
asked 2021-03-02
What is the probability of drawing 2 cards in succession (without replacement) from a standard deck of playing cards and having them both be hearts?
Probability
asked 2021-02-26
Census reports for a city indicate that 62% of residents classify themselves as Christian, 12% as Jewish , and 16% as members of other religions (Muslims, Buddhists, etc.).
The remaining residents classify themselves as nonreligious.
A polling organization seeking information about public opinions wants to be sure to talk with people holding a variety of religious views, and makes random phone calls. Among the first four people they call, what is the probability they reach a) all Christians? b) no Jews? c) at least one person who is nonreligious?
Binomial probability
asked 2021-02-25
Determine the binomial probability when n =10, p = 0.50, x = 8.
Binomial probability
asked 2021-02-24
X denotes a binomial random variable with parameters n and p, Indicate which area under the appropriate normal curve would be determined to approximate the specified binomial probability.
\(\displaystyle{P}{\left({X}\ge{8}\right)}\)
Probability
asked 2021-02-21
Subjects for the next presidential election poll are contacted using telephone numbers in which the last four digits are randomly selected (with replacement). Find the probability that for one such phone number, the last four digits include at least one 0.
Binomial probability
asked 2021-02-19
Convert the binomial probability to a normal distribution probability using continuity correction. P (x = 45).
Binomial probability
asked 2021-02-19
Please, find the normal approximation for the binomial probability of P(x = 3) where n = 12 and p = 0.5
Probability
asked 2021-02-19
The diagram shows a spinner. When the arrow is spun the probability of scoring a 2 is 0.3 . The arrow is spun twice and the scores are added. What is the probability that the total score is 6?6? Express the answer as a decimal. [ \sqrt { 2 } \text { . } ]
Binomial probability
asked 2021-02-19
The probability that a patient recovers from a stomach disease is 0.8. Suppose 20 people are known to have contracted this disease. What is the probability that exactly 14 recover?
Probability
asked 2021-02-11
Suppose p and q are nonzero integers with different signs. Is the product p(-q) positive or negative? Explain.
Binomial probability
asked 2021-02-05
1) State the formula for the Binomial Probability Distribution, also state the domain. 2) Tell what the requirement for the Binomial experiment are. 3) List both formulas for calculating the mean of a Binomial Probability Distribution. 4) List the formulas for the standard deviation of a Binomial Probability Distribution.
Probability
asked 2021-02-04
A bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Find each probability. drawing a yellow chip, replacing it, and choosing a blue chip.
Probability
asked 2021-02-03
A normal distribution has a mean of 32 and a standard deviation of 4. Find the probability that a randomly selected xx -value from the distribution is at most 35. Round to four decimal places.
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