Answer:
should be 7.33
Step-by-step explanation:
sorry if I'm wrong im like 100% its the answer but for some reason its not then I am very sorry
Answer:
70
Step-by-step explanation:
Porque si haces 31-18=13
57-44=13 entonces están subiendo en 1e y luego haces 57+13=70
Answer: what do need help on
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given the mean is 3.2, standard deviation is 0.8 and the sample size is 64.
-We calculate the probability of a mean of 3.4 as follows:
#First determine the z-value:

#We then determine the corresponding probability on the z tables:

Hence, the probability of obtaining a sample mean this large or larger is 0.0228
You will save $9
Convert 20% to decimal
Each % is 0.01 so 20×0.01=0.2
Then multiply
45×0.2=9