The tens column is the one directly to the right of the decimal, so you need to get rid of the seven. Since the 7 is closer to ten than it is to zero (it's bigger than 5), you will round up. When you round up, you add 1 to the number on the left, the 9. So it will become 10, or 1.0
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
Answer:
y= 1/3x + 3.66
Step-by-step explanation:
1/3 of the wall is covered in stone
Hi there! This is basic multiplication, if 1 inch equals 25 miles than 2 inches equals 50 miles. To get this answer all I did was multiply 25 by 2 to get the answer of 50 miles.