Mathematics, 27.06.2019 08:30 momo842
Question 1 (5 points) correlation implies causation. question 1 options: true false question 2 (5 points) a correlation between two variables question 2 options: that both variables are always equal that there is no relationship between the variables that a change in one variable is matched by a change in the other variable there is something wrong with the data question 3 (5 points) a negative correlation between two variables question 3 options: both variables are decreasing both variables are increasing there is no correlation when one variable goes up, the other goes down question 4 (5 points) a strong linear correlation question 4 options: both variables are increasing the graph of data points stay close to a line there is a wide spread in the data question 5 (5 points) standard deviation is a measure question 5 options: how linear data is. the spread of data. the difference between the greatest and the lowest values. question 6 (5 points) the formula for standard deviation uses which average? question 6 options: mean median mode zero question 7 (5 points) according the the fundamental counting principal for multiplication, if event a has m possible outcomes and event b has n possible, then even a followed by event b question 7 options: m + n outcomes m - n outcomes m x n outcomes m / n outcomes question 8 (5 points) what is the value of 4! ("four factorial") question 8 options: 4 16 10 24 question 9 (5 points) if the probability of passing an exam is 80%, what is the probability of not passing it? question 9 options: 80% 50% 100% 20% question 10 (5 points) given that when flipping a coin, there is 1/2 chance of getting a heads: what is the probability of flipping a coin and getting heads twice in a row? question 10 options: 1 1/2 1/4 1/2
Answers: 1
Mathematics, 21.06.2019 20:30
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 1
Mathematics, 21.06.2019 21:00
Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.
Answers: 3
Mathematics, 21.06.2019 22:00
Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.
Answers: 2
Question 1 (5 points) correlation implies causation. question 1 options: true false question 2 (5...
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