Jean is planning to take a foreign-language class. to research how satisfied other students are with their foreign language classes, she decides to take a sample of 50 such students. the university offers classes in five languages: spanish, german, russian, french, and japanese. she will select a random sample of 10 students from each language. what best describes the sampling technique jean is using?
a) a simple random sample
b) a stratified random sample
c) a voluntary response sample

b) a stratified random sample

Step-by-step explanation:

Stratified random sampling is a sampling process that includes dividing a group into smaller  groups called strata.

The strata are established in stratified random sampling or stratification  on the basis of mutual characteristics or features of participants.

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !