Step-by-step explanation:
3x+6=18
3x=18-6
3x=12
x=4
Since the data follows a normal distribution, the 68-95-97 rule can be used to describe the number of people falling under N standard deviations from the mean. Since the standard deviation is 1, hemoglobin levels of 13 -15 g/dL contains 68% of the sample, or 136 people. This means the 32 people have less than 13 g/dL and 32 people have more than 15 g/dL.
Answer: A
Step by step: None
Answer: Length of shorter side is 2.8 cm.
Explanation:
Since we have given that
Dimensions of a room are given by
On a plan, the longer side = 4 cm
As we know that the ratio of original room is equal to ratio of plan room
So,
So, length of shorter side is 2.8 cm.
