2. Stacy is studying the difference in mathematical abilities of students from different high schools. Due to limited resources, she was only able to perform nonprobability sampling. However, she made sure that she got 20 freshmen, 30 sophomores, 30 juniors and 20 seniors in his sample. What type of nonprobability sampling did Stacy use? Your answer 3. A national TV network asked voters which politician they voted for upon exiting their precinct. What method of data collection did the network use?

Q: C dx 1+ C +2 X 3

A:

Q: 3 3 x-5 1 322

A:

Q: 2 200 2 O - 50 2 .……....... m

A: To factorize 200

Q: Rang lertex = (-7;3) qu'od

A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

Q: 1 Evaluate. 5P3 • 6C4 900 300 150

A: Use the formula and evaluate.

Q: A 2/15 B 30 V35 5 20

A: Given,  A circle with secant and tangent  We have to find the value of x

Q: A 25 24

A:

Q: 24 27 x 18

A: Two chords intersecting inside the circle and we need to find the value of x.

Q: 5 23 4 48 1 5 75

A: Given       5  2 3 − 4 4 8¯      1  5 7 5

Q: h each scatterplot shown below with one of the four specified correlations. O 8 9 a. -0.02 b. 0.66…

A: From the above scatter plot From First scatter plot  The value of correlation coefficient is  -0. 85…

Q: I need help with 6b

A:

Q: N 11 9

A: Here given that N/9=11

Q: ГО Г0 3 -31 2 3-3 62 5 1 -6 3 || Н

A:

Q: there can only be 1 answer

A: The equation for a plane is