The statistics of n=22 and s=14.3 result in this 95% confidence interval estimate of σ: 11.0< σ< 20.4. that confidence interval can also be expressed as (11.0, 20.4). given that 15.7±4.7 results in values of 11.0 and 20.4, can the confidence interval be expressed as 15.7±4.7 as well?

13.33%

say 50 oranges, then 100 apples

80 are red, 20 are yellow

total fruit = 150

20chances out of 150 for yellow

20/150 = 13.33%

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925