Mathematics, 23.09.2019 17:20 jackchelly

Which is the best estimate of the correlation coefficient for the scatter plot?

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Mathematics, 21.06.2019 18:30

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

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Mathematics, 21.06.2019 21:30

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

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Mathematics, 21.06.2019 23:30

Determine if the following statement is true or false. the normal curve is symmetric about itsâ€‹ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about itsâ€‹ mean, because the mean is the balancing point of the graph of the distribution. the median is the point whereâ€‹ 50% of the area under the distribution is to the left andâ€‹ 50% to the right.â€‹ therefore, the normal curve could only be symmetric about itsâ€‹ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with oneâ€‹ peak, which means theâ€‹ mean, median, and mode are all equal.â€‹ therefore, the normal curve is symmetric about theâ€‹ mean, mu. c. the statement is false. the mean is the balancing point for the graph of aâ€‹ distribution, andâ€‹ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of aâ€‹ distribution, andâ€‹ therefore, all distributions are symmetric about the mean.

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Mathematics, 21.06.2019 23:30

Afriend of mine is giving a dinner party. his current wine supply includes 10 bottles of zinfandel, 8 of merlot, and 11 of cabernet (he only drinks red wine), all from different wineries. (a) if he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to do this? ways (b) if 6 bottles of wine are to be randomly selected from the 29 for serving, how many ways are there to do this? ways (c) if 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety? ways (d) if 6 bottles are randomly selected, what is the probability that this results in two bottles of each variety being chosen? (round your answer to three decimal places.) (e) if 6 bottles are randomly selected, what is the probability that all of them are the same variety? (round your answer to three decimal places.)