Mathematics, 04.10.2020 06:01 beautycutieforever10
Charles wants to find out if the students in foreign language classes spend more time in class speaking in English or in
the foreign language they are studying, Charles first gets class lists of all students taking foreign language classes. He
then chooses 10 students from each different language class to survey, Which best explains why the sample he chose
may not be a representative sample?
The sample size is not large enough to represent the population,
The sample was not chosen at random,
The way the sample was chosen may overrepresent or underrepresent students taking certain language classes,
The way the sample was chosen does not sample students from each different language class.
Answers: 3
Mathematics, 21.06.2019 18:30
An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3
Answers: 2
Mathematics, 21.06.2019 18:50
Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}
Answers: 3
Mathematics, 21.06.2019 19:00
1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?
Answers: 1
Charles wants to find out if the students in foreign language classes spend more time in class speak...
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