A student is taking a true-false exam with 10 questions. Assume that the student guesses at all 10 questions. Use the accompanying tables to complete parts a through c. Click the icon to view the binomial distribution table for p = 0.5 and n = 10. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Click here to view page 3 of the normal table. Click here to view page 4 of the normal table. a. The student gets either seven or eight answers correct. The probability the student gets either seven or eight answers correct is (Round to four decimal places as needed.) IT

State whether you would expect this distribution to be symmetric, left-skewed, orright-skewed, and briefly explain: ages of people obtaining a driver’s license for the firsttime.

Describe the shape of the distribution. OA. It is skewed. O B. It is bimodal. O C. It is symmetric. O D. It is uniform.

The average fruit fly will lay 389 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 358, 388, 362, 382, 371, 385, 384, 393, 403, 389, 405 What can be concluded at the the a = 0.10 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho? Select an answer♥ H₁ PS Select an answer c. The test statistic ? (please show your answer to 3 decimal

The average fruit fly will lay 377 eggs into rotting fruit. A biologist wants to see if the average will be greater for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 367, 374, 364, 388, 407, 369, 375, 362, 403, 383, 381, 391, 371 What can be concluded at the the αα = 0.10 level of significance level of significance?    The test statistic =     (please show your answer to 3 decimal places.) The p-value =         (Please show your answer to 4 decimal places.)

Solve for the mean, median, mode, standard deviation and  Identify whether there is an outlier. If so, solve for the new mean, median, mode and standard deviation if the outlier is to be eliminated. 325,345,384,369,384,396,336,305,328,357

Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their overnight stays are listed in the accompanying table. Find the mean of the distribution.

The average fruit fly will lay 375 eggs into rotting fruit. A biologist wants to see if the average will be greater for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 379, 406, 378, 394, 369, 369, 402, 383, 367, 357, 401, 407, 357, 394, 367 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: H1: C. The test statistic (please show your answer to 3 decimal places.) d. The p-value (Please show your answer %D to 4 decimal places.)

You draw a card from a deck. If you get a red​ card, you win nothing. If you get a​ spade, you win ​$6. For any​ club, you win ​$12 plus an extra ​$20 for the ace of clubs. Find the standard deviation of the amount you might win drawing a card.

The arithmetic mean of a distribution is 5 .The second and the third moments of the distribution about the mean are 20 and 140 respective. Find the third moment of the distribution about 10