Ezekiel Anderson

Questions

• How can i solve this tricky question in statistics? (details inside, tricky for me)
• What is the mean, median, and mode of 1, 4, 5, 6, 10, 25?
• A six-sided number cube is rolled five times, X is the number of times an even number is rolled. Which statement is true about this situation?
• In how many distinct ways can the letters of the word STATES be arranged?
• If you flip a fair coin 10 times, what is the probability that it lands on heads exactly 4 times?
• What are the mean and standard deviation of a binomial probability distribution with n=13 and p=0.1?
• How many ways can an adviser choose 3 students from a class of 10?
• What is the mean of 80, 86, 78, 100, 27?
• You have #n# pieces of pie to be given out to #k# people, and all #n# pieces are given out. How do you find a formula for the total number of ways to give out pie?
• Chris has 25 songs in his library and wants to put 12 of them into a playlist. If he picks songs at random, how many different groups of songs can be created?
• Can a data set with two or three numbers have a standard deviation?
• Assume that there are 2 trials. X = 2 where X represents the number of successes. Which probability matches the probability histogram? Round the answer to one decimal place. P(success)=0.2 P(success)=0.4 P(success)=0.6 P(success)=0.8
• A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .03 significance level. What is the p-value?
• What is the the area under the normal distribution curve to the right of #z= -1.03#?
• What is the geometric mean of 81 and 4?
• What do the standard deviation and the range tell you about a data set, as contrasted to what the mean tells you?
• Assume that IQ scores are normally distributed, with a mean #mu# of 100 and standard deviation #sigma# of 15. What is the probability that a randomly selected person has an IQ score between 105 and 110?
• If I don't have a calculator, how can I assess the normality of a data set?
• If a set of grades on statistics examination are approximately normally distributed with a mean of 74 and a standard deviation of 7.9, what is the lowest B if the top 10% of the students are given A's and the next 25% are given B's?
• If the probability that an event will happen is 0.89, what is the probability of the event's complement?
• 1
• 2
• 3
• 4
• 5
• 6
• •••
• 9