A particular lake is known to be one of the best places to catch a certain type of fish. In this table, x = number of fish caught in a 6-hour period. The percentage data are the percentages of fishermen who caught x fish in a 6-hour period while fishing from shore. x 0 1 2 3 at least 4 % 45% 36% 13% 5% 1%     (a) Find the probability that a fisherman selected at random fishing from shore catches one or more fish in a 6-hour period. (Round your answer to two decimal places.) (b) Find the probability that a fisherman selected at random fishing from shore catches two or more fish in a 6-hour period. (Round your answer to two decimal places.) (c) Compute ?, the expected value of the number of fish caught per fisherman in a 6-hour period (round "at least 4" to 4). (Round your answer to two decimal places.)

Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.     ​Drive-thru Restaurant      A B C D Order Accurate 314 277 244 131 Order Not Accurate 33 51 34 18   If three different orders are​ selected, find the probability that they are all from restaurant D.

Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.   If one order is​ selected, find the probability of getting food that is not from Restaurant A.   The probability of getting food that is not from Restaurant A is ​(Round to three decimal places as​ needed.)

Dandelions are studied for their effects on crop production and lawn growth. In one region, the mean number of dandelions per square meter was found to be 8. Find the probability of no dandelions in an area of 1 m². P(X= 0): = Find the probability of at least one dandelion in an area of 1 m². P(at least one) = Find the probability of at most two dandelions in an area of 1 m². P(X ≤ 2)

Cal Poly Pomona found that 15% of its students withdraw without completing Calculus I course. Assume that 30 students registered for the course. Let X be the number of students who withdraw. What distribution does X follow?

Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it is possible to use the cricket as a thermometer? Crickets tend to chirp more frequently as temperatures increase. This phenomenon was studied in detail by George W. Pierce, a physics professor at Harvard. In the following data, x is a random variable representing chirps per second and y is a random variable representing temperature (°F). x 19.8 15.3 20.4 18.1 16.2 15.5 14.7 17.1 y 89.4 73.2 95.3 86.1 78.8 75.2 69.7 82.0 x 15.4 16.2 15.0 17.2 16.0 17.0 14.4 y 69.4 83.3 79.6 82.6 80.6 83.5 76.3           (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx =   Σy =   Σx2 =   Σy2 =   Σxy =   r =   (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and…

8°F Vindy Question 3 Question submitted. > Next question You can retry this question below The probability distribution for the number of houses on a street is given, but one value is missing. Fill in the missing value, then answer the questions that follow. P(X) X 22 23 24 25 26 ++ 0.16 0.2 0.23 .23 0.18 Round your answers to two decimal places. b) Find the mean number of houses on the street: 27.04 c) Find the variance of the number of houses on the street: 1.79 Submit Question Q Search H 8p

The following is the probability distribution for an athlete of winning medals. Medal (Event) Gold E1 Silver E2 Bronze E3 No medal E4 P(Ei) 0.10 0.15 0.20 0.55 Find the probability of earning a medal. Group of answer choices 0.45 0.9 0.15 0.75 0.25

How many cups-o-joe do you drink? About 72% of Americans drink coffee. How much they drink: 1 cup a day 27% 2 or more cups a day 45% 2 cups 1 сup a week a week 15% 13% Source: Braun Research for International Delight Coffee House Inspirations Use the information in this display to answer the following questions. Assume that the percentages in the graph are representative of adult Americans. (a) What is the probability that a randomly selected adult American drinks coffee? (b) The display associates 13% with the category "one cup of coffee a week." For the chance experiment that consists of selecting an adult American at random, is 0.13 the probability that the selected individual drinks one cup of coffee a week, or is it the conditional probability that the selected individual drinks one cup of coffee a week given that he or she drinks coffee? Explain. O This is the probability that the selected individual drinks one cup of coffee a week, because that probability is less than 72%,…

The percentage of the general population that has each blood type is shown in the table below. Determine the probability distribution associated with these data. (Enter your answers to two decimal places.) Blood Type A B AB O Population, % 40 13 4 43 Probability