Compare the rates to find which is the best value.

Mathematics

2 answers:

stiv31 [10]3 years ago

8 0

Answer:

C: 6 greeting cards for $23.40

Step-by-step explanation:

Nikolay [14]3 years ago

7 0

Answer:

6 greeting cards for 23.40

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Fran reads 54 pages per hour if she reads total of 257 pages one weekend how many hours to the nearest hundredth does he read

Drupady [299]

I wrote the equation 54x=257, where x=number of hours used reading, which means you have to solve for x. which is 4.76

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3 years ago

Left-handedness occurs in about 12% of all Americans. Males are slightly more likely than females to be left-handed, with 13% of

FinnZ [79.3K]

Answer:

a)Both X and Y can be well approximated by normal random variables.

Step-by-step explanation:

For each individual, there are only two possible outcomes. Either they are right-handed, or they are left-handed. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability:

Probability of exactly x sucesses on n repeated trials, with probability p.

The binomial probability can be well approximated by normal random variables, using the expected value $E(X) = np$ and the standard deviation $\sigma = \sqrt{np(1-p)}$