Answer:
20 hotdogs and 22 bags of popcorn.
Step-by-step explanation:
Answer:
option (c) The mean age will stay the same but the variance will decrease
Step-by-step explanation:
Case I: For 3 executives of ages 56, 57 and 58
Number of executives, n = 3
Mean =
or
Mean = 57
Variance =
or
Variance =
or
Variance =
or
Variance = 1
For Case II: For 4 executives of ages 56, 57, 58 and 57
Number of executives, n = 4
Mean =
or
Mean = 57
Variance =
or
Variance =
or
Variance =
or
Variance = 0.67
Hence,
Mean will remain the same and the variance will decrease
Hence,
The correct answer is option (c) The mean age will stay the same but the variance will decrease
C. (0,2) if you plot these points correctly on a graph, the center is at 0,2. hope this helped.
Ratio of cat : to dog = 40 : 20 = 2:1
The answer is 675. 2270. 657