Search
Info
Warning
Danger

Study Resources (Statistics)

    MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. 28) True or False:  The area under the normal curve drawn with regard to the population parameters is the same as the proportion of the population that has these characteristics.  28) ______ A) False B).
1 Views
View Answer
    143) Consider a political discussion group consisting of 4 Democrats, 6 Republicans, and 5 Independents.  Suppose that two group members are randomly selected, in succession, to attend a political convention.  Find the probability of selecting an Independent and then a Republican. 143) _____ A) B) C) D).
1 Views
View Answer
    Provide an appropriate response. 48) A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 450 seconds and a standard deviation of 50 seconds. Find.
1 Views
View Answer
    223) A club elects a president, vice-president, and secretary-treasurer. How many sets of officers are possible if there are 15 members and any member can be elected to each position? No person can hold more than one office. 223) _____ A) 1365 B) 910 C) 32,760 D) 2730   224) From.
1 Views
View Answer
  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Classify the following random variable according to whether it is discrete or continuous. 1) the number of bottles of juice sold in a cafeteria during lunch 1) _______ A) discrete B) continuous   2) the heights.
2 Views
View Answer
    SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. 20) The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, (a) construct a probability distribution, and (b) graph the probability.
1 Views
View Answer
    Provide an appropriate response. 11) The peak shopping time at home improvement store is between 8:00am-11:00 am on Saturday mornings. Management at the home improvement store randomly selected 35 customers last Saturday morning and decided to observe their shopping habits. They recorded the number of items that each of the.
1 Views
View Answer
    MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. 104) Given that a random variable x, the number of successes, follows a Poisson process, the probability of 2 or more successes in any sufficiently small subinterval is 104) _____ A) one. B) any number.
1 Views
View Answer
    133) After completing an inventory of three warehouses, a golf club shaft manufacturer described its stock of 12,246 shafts with the percentages given in the table. Suppose a shaft is selected at random from the 12,246 currently in stock, and the warehouse number and type of shaft are observed.  Given.
1 Views
View Answer
    Compute P(x) using the binomial probability formula. Then determine whether the normal distribution can be used as an approximation for the binomial distribution. If so, approximate P(x) and compare the result to the exact probability. 102) n = 80, p = 0.7, x = 62  (Round the standard deviation to.
1 Views
View Answer
  Find the indicated probability. Give your answer as a simplified fraction. 123) The overnight shipping business has skyrocketed in the last ten years. The single greatest predictor of a company's success has been proven time and again to be customer service. A study was conducted to study the customer satisfaction.
1 Views
View Answer
  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) High temperatures in a certain city for the month of August follow a uniform distribution over the interval to What is the probability that a randomly selected August.
3 Views
View Answer
    MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. 48) A baseball player is asked to swing at pitches in sets of four.  The player swings at 100 sets of 4 pitches.  The probability distribution for hitting a particular number of pitches is given.
1 Views
View Answer
  24) Use the frequency distribution to (a) construct a probability distribution for the random variable x which represents the number of cars per family in a town of 1000 families, and (b) graph the probability histogram. 24)  _____________   MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or.
1 Views
View Answer