Question

help with statistics please

Answer 1

Ted is not particularly creative he uses the pickup line "If I could rearange the alphabet I would put U and I together" the random variable x is the number of girls ted approaches before encountering one who reacts positively. Determine whether the table describes a probablility distribution if it does find its mean and standard deviations.

Answer 2

To be a probability distribution, the sum of the probabilities must equal 1.

Answer 3

oh yeah thanks so it is not a probability distribution because it i think added up to like 800 and something

Answer 4

0.807 actually

Answer 5

yep!

Answer 6

the standard deviation is not coming out right

Answer 7

is it because its not a probability distribution

Answer 8

Yes

Answer 9

And the question says so too... "If it does, find the mean and std. deviation" but it's not a prob. distribution

Answer 10

so for the questions

find the mean u of the random variable x select the correct choice below and if necessary fill in the answer box to complete your choice

A. u=
B, the table is not a probability distribution

find the standard deviation o of the random variable x select the correct choice below and if necessary fill in the answer box

A. o=
B, the table is not a probability distribution

would both question be B? or do I fill out the first question and mark the second as B?

Answer 11

yeah it should be B for both

Answer 12

ok thanks so so much

Answer 13

np