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A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?
State the five types of central tendency in general use. Which of these are most frequently used in SPC work and calculate the median for the group of results tabulated below: 1,3,4,6,7,9,11,14,16,17,18.
Starting with these three random numbers and moving down the five leftmost columns of Table 7.1(a) to find more five-digit random numbers.
A criminologist developed a test to measure recidivism, where low scores indicated a lower probability of repeating the undesirable behavior. The test is normed so that it has a mean of 140 and a standard deviation of 40.
What are the changes social media has brought to consumers in different stages of their decision-making - how many social media platforms are used by online marketers in Saudi Arabia and what are their effects?
Calculate the standard deviation for the sample mean
Jack weighs 160 pounds and his sister weighs 110 pounds. If themean weight for men his age is 175 with a standard deviation of 14pounds and the mean weight for women is 145 with a standarddeviation of 10 pounds, determine whose weight is closer to "a..
Let A and B be two events with P(A)=0.4, P(B)=p and P(A∪B)=0.7 (a) Find the value of p for which A and B are mutually exclusive (b) Find the value of p for which A and B are independent
1. For a population with m = 50 and a standard deviation of s = 10,
The LDL cholesterol levels in a certain population has the distribution N(5.9, 0.8). 1. What is the cholesterol level of the 'healthiest' (i.e. lowest!) 20%?
Calculate the percentage of variance explained for r = 0.53. Is this correlation clinically important? Provide a rationale for your answer.
the pdf for 3 parameter frechet distribution is ltbrgtfxa?a x-?-a-1 exp-x-?-a ltbrgtthen how we can prove the cdf for
The United States has ten times the population of Canada. Assuming equal standard deviations, how many American teenagers must be sampled in order to estimate the true mean amount of time American teenagers spend on the internet per day to within 15..
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