Answer:
9^2
Step-by-step explanation:
we do 3*3 which is 9, and then 9 to the second power
Answer:
Look at the graph, on the left side it says snow on the ground, and it starts on 5, as the storm continued more fell. nvm.
Step-by-step explanation: The answer to your question is 5, because that is how much is on the ground at the beggining.
Answer:
We define the random variable X as the walking age and we are interested if American children learn to walk less than 15 months so then that would be the alternative hypothesis and the complement would be the null hypothesis.
Null hypothesis: 
Alternative hypothesis: 
And for this case the best answer would be:
H 0 : μ ≥ 15 vs. Ha : μ < 15
Step-by-step explanation:
We define the random variable X as the walking age and we are interested if American children learn to walk less than 15 months so then that would be the alternative hypothesis and the complement would be the null hypothesis.
Null hypothesis: 
Alternative hypothesis: 
And for this case the best answer would be:
H 0 : μ ≥ 15 vs. Ha : μ < 15
And the data given from the sample is:
represent the sample mean
represent the population deviation
represent the sample size
And the statistic would be given by:

I believe that the answer is 14 or 7