A: Suppose Mr. Moore decides to use 20 seventh graders as the sample. Is this sample a random sample? Explain your reasoning.
Ans: No, because he only chose the seventh graders which is invalid since he wants to have to use the mean height which involves the 6th, 7th and 8th graders.
B: Mr. Moore decides to use a random number generator to select 20 students from the school. Suppose that when choosing 20 students using the random generator on the graphing calculator, Mr. Moore’s sample is all eighth graders. Does that mean the sample is not a random sample? Explain your reasoning.
Ans: No, it is still a random sample. Since he is using a random generator, there is a possibility that the random generator would pick all students from the 8th grade. Unlike the first one, the random generator is not biased towards any grade, it is just a coincidence.
Probably 2 because It doesn't matter how many beads are in the bag and for 33.34% you would probably draw 2 beads before on the third draw getting a red one and 30% is close to 33.34% then I would you would probably draw 2 beads before drawing a red one.
19 over 4 is your answer unless you want me to simplify it for u
Answer:
It's y=3x
Step-by-step explanation:
The y-intercept is 0, it's direct variation. The slope(rise/run) is 3.
Answer:
2.50 x 7= 22.50
22.50+10.00 =33.50
total cost :$33.50
Step-by-step explanation:
