21 :414 I E . 0 Option 3 Which term is also called the \"mean of probability distribution\"? 0 a. variance 0 b. expected value 0 0. random variable 0 d. standard deviation If the variance of a probability distribution is 4, what is its standard deviation? O 3.1 O b.2 1 point 1 point If the variance of a probability distribution is 4, what is its standard deviation? What is the sum of the probability in a discrete random variable? 1 point 1 point A government office has 1 point six telephone lines. For the past months, the probability distribution of the random variably Y which represents the number of busy lines per day is shown in the records below. What is the [ Y - P(Y)]? A government office has 1 point six telephone lines. For the past months, the probability distribution of the random variably Y which represents the number of busy lines per day is shown in the records below. What is the 5[ Y2 - P(Y)]? A government office has 1 point six telephone lines. For the past months, the probability distribution of the random variably Y which represents the number of busy lines per day is shown in the records below. What is the probability that exactly four telephone lines are busy in a day? A government office has 1 point six telephone lines. For the past months, the probability distribution of the random variably Y which represents the number of busy lines per day is shown in the records below. What is the variance of the probability distribution? n A government office has 1 point What is the area under the 1 point normal curve? What is a picture of a 1 point normal probability distribution? 0 a. bar graph b. pie graph 0. bell shape d. hyperbola OOO 0 d. hyperbola A teacher conducting research divided the students into grade levels and selected 15 representatives from each grade level. What kind of random sampling the situation illustrates? O a. Simple O b. systematic O c. stratified Q d. cluster The researcher surveyed 10 senior citizens in each barangay of a certain city. a What kind of random 1 point 1 point 21141 4 I IE) 0 0 docs.google.wM/ The researcher surveyed 1 point 10 senior citizens in each barangay of a certain city. What kind of random sampling the situation illustrates? O a. Simple O b. systematic O c. stratified 0 d. cluster The researcher 1 point interviewed every 12th name on the list of teachers. What kind of a random sampling the situation illustrates? 21:41 10.0 KB/S 95 The researcher 1 point interviewed every 12th name on the list of teachers. What kind of random sampling the situation illustrates? a. Simple O b. systematic c. stratified O d. cluster Find the area under the 1 point curve below z = -2.62. a. 0.44% b. 21.1% O c. 12.1% B O d. 44% E O21:41 3.00 KB/S 2: I'll 95 docs.google.com/ 6 . . O b. 21. 1% c. 12.1% d. 44% Find the area under the 1 point curve between z = -2.84 and z = 0.95. a. 0.8266% O b. 8.266% O c. 82.66% O d. 826.6% Consider a finite 1 point population of the age consists of 4Ps beneficiaries whose 11 10 15 10 20 E21142 I IE) (9 Consider a finite 1 point population of the age consists of 4Ps beneficiaries whose values are 11,13,15,18,20. What is the sample mean of the sampling distribution? The average travel time of 1 point a senior high school students in General Santos 21:42 f 5.00 KB/S 95 docs.google.com/ 6 . . . The average travel time of 1 point senior high school students in General Santos City is 12.05 minutes with a standard deviation of 7.12 minutes. If we take 36 samples what would be the variance of the population? O a. 50.69 O b. 2.03 c. 1.41 O d. 1.19 What percentile does the 1 point t-value of t = 1.860 with df ! = 8 represent? E O21142 I E) (D What percentile does the 1 point tvalue oft = 1.860 with df = 8 represent? In estimating the mean 1 point selling price of all college textbooks which was reported to have a standard deviation of P80, how many college textbooks must be a selected as samples if you 21:42 I IE'I (D 0 0 H docs.google.wM/ In estimating the mean 1 point selling price of all college textbooks which was reported to have a standard deviation of P80, how many college textbooks must be selected as samples if you want to be 95% confident that the sample mean is within P20 of the true population mean? 57 58 59 0000 60 Page'l of1 Clear form