Answer:
20 students.
Step-by-step explanation:
The <u>first </u>person said 5 (which is 5 x 1), the <u>second </u>person said 10 ( which is 5 x2)... we see that this is a arithmetic sequence where the first term is 5 and the nth term is 100. We know that 100 = 5 x 20, therefore, the number of students that counted all the way up to 100 was 20 and Bobby was wrong.
Assuming that I earn 4% of $2,500 per year, I would earn $800 after 8 years.
Answer:
0.001
Step-by-step explanation:
Here, the aim is to support the null hypothesis, Ha. Where Ha: p > 0.5. Which means we are to reject null hypothesis H0. Where H0: p = 0.5.
The higher the pvalue, the higher the evidence of success. We know If the pvalue is less than level of significance, the null hypothesis H0 is rejected.
Hence the smallest possible value 0.001 is preferred as the pvalue because it corresponds to the sample evidence that most strongly supports the alternative hypothesis that the method is effective
Answer:
E. 0.6872
Step-by-step explanation:
An appropriate calculator or Z-table is needed for answering questions like this. My calculator tells me the area is ...
0.687267787 ≈ 0.6873
____
The web app shown in the attachment gives the same 4-digit value.
____
If you look up the area values in a table, you might find ...
p(z < -1.2) = 0.1151
p(z < 0.85) = 0.8023
Then the difference is ...
p(-1.2 < z < 0.85) = 0.8023 -0.1151 = 0.6872
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Note that the least significant digit of the difference between rounded numbers often cannot be trusted to be accurate--as in this case.
The answer is a. x=-6, extraneous i hope that i was of some sort of help with this problem you are welcome.