Probability
What is 22/52?
This is the probability that exactly 6 of 8 people in a sampled group use a smartphone if the probability that a randomly sample person uses a smartphone is 54%
What is 0.147?
The area under a density curve is always this
What is 1?
The CLT applies if either of these two conditions are met
This is the name of how many standard deviations a value is above or below the mean
What is a z-score?
This is the probability of guessing the first 5 digits of pi correctly
What is 1/100,000?
This is the expected value of a four sided die that has a probability of 1/5 of a 1, 1/5 of a 2, 1/5 of a 3, and 2/5 of a 4
What is 2.8?
If P(z>1.21)=0.1123, then this is P(0<z<1.21)
What is 0.3877?
If IQ is designed such that the mean population IQ is 100 with a standard deviation of 15, then this is the probability of randomly selecting someone with an IQ exceeding 115
What is 0.1587?
A uniform distribution of width 10 has this probability when selecting exactly 7
What is zero?
This is the probability of a randomly selected subject being a child given the subject has the flu, if a sample contains 10 adults with flu, 12 adults without, 5 children with the flu, and 7 without
What is 5/15?
Recalling, sigma=sqrt(sum[(x-mu)^2 * P(x)]) If the probability of 1 out of 3 people okay with AI is 0.3, 2 out of 3 is 0.6, and 0 out of 3 is 0.1, then this is the standard deviation of the probability distribution
What is 0.67?
The first decile of a normally distributed population has a mean of 70 and a standard deviation of 5
What is 63.6?
What is 0.0001?
If there is a 10% probability of an event failing, then this is the probability of getting fewer than 2 out of 5 successes
What is 0.000451?