Answer:
The answer is (d)= Selecting a simple random sample from each of a given number of strata formed from the elements in the population.
Stratified random sampling is a sampling method where the population has a number of distinct categories. The population can be organized into separate strata and each stratum is then sampled as an independent sub-population out of which individual elements can be randomly selected. In this case, each unit in a stratum, that is, each element in a group has the chance of being selected into the sample and there is adequate representation of minority sub-groups. With Stratified sampling, the best result occurs when elements within strata are internally homogeneous.
Step-by-step explanation:
Answer: $112.80
Step-by-step explanation:
As the month has 24 working days and Deprina buys a coffee every Day she goes to work, she Will spent $4.70 24 times.
This way, all we have to do to find out how much she Will spend is multiply 4.70 by 24:
$4.70 * 24 = $112.80
The coffee generates a amount of $112.80 per month for Deprina.
Answer:
what are you calculating here
Step-by-step explanation:
let's plug in the value of y :
Answer:
19.5m
Step-by-step explanation:
Use the Pythagorean theorem.
a^2 + b^2 = c^2
The longest side, 35m, is c and the base of the triangle, 29m, is b.
a^2 + 29^2 = 35^2
Simplify.
a^2 + 841 = 1225
Get a by itself by adding -841 to both sides to cancel out the 841.
a^2 = 384
Find the square root of both sides to get rid of the exponent.
square root of 384 = ~19.5959
a = 19.5
