I think the probability of picking an odd number is 7/15
Answer:
H0: p = 0.078
Ha: p ≠ 0.078
Step-by-step explanation:
The researchers say that the rate is about 7.8%, or 0.078 as a decimal. That makes that the null hypothesis because using "is" in math is the same as saying "equals" and the null hypothesis always has the statement of equality in it. The reason there is a not equals to sign in the alternate is for this reason as well. The researchers say it is about that amount, not more or less than that amount. So it makes this a 2 tailed test. If the amount is significantly higher or lower, then we might have to reject the null hypothesis depending on the outcome of the test.
Answer: x= - 6/7, y= - 129/12
Explanation:
use the addition/elimination method to solve for x. then sub in and test then lastly, multiply everything by 7 to eliminate the fraction
Answer:
positive fourteen negative nine c
