Answer:
B 10.211 < 10.210
Step-by-step explanation:
Evaluating each of the given statements one by one:
A 10.345 > 10.340
Decimal values at the tenth and hundredth place are the same on both sides while the thousandth part value is greater on the left side.
Hence, this statement is true
B 10.211 < 10.210
Decimal values at the tenth and hundredth place are the same on both sides while the thousandth part value is greater on the left side.
Hence , this statement is not true because 10.211>10.210
C 9.999 < 10.0
This statement is true because 9.999 is less than 10.
D 6.3 = 6.30
This statement is correct as the left hand side is the same as right hand side.
The mean absolute deviation is the average of the average. It shows the average distance of the numbers in a data set from the mean. After finding the mean, you find the absolute value of the distance between each number, and find the mean of those numbers to find the mean absolute deviation.
Yes
explanation : i took the test
We have been given that the lifespans of lions in a particular zoo are normally distributed. The average lion lives 12.5 years; the standard deviation is 2.4 years. We are asked to find the probability of a lion living longer than 10.1 years using empirical rule.
First of all, we will find the z-score corresponding to sample score 10.1.
, where,
z = z-score,
x = Random sample score,
= Mean
= Standard deviation.
Since z-score of 10.1 is 
. Now we need to find area under curve that is below one standard deviation from mean.
We know that approximately 68% of data points lie between one standard deviation from mean.
We also know that 50% of data points are above mean and 50% of data points are below mean.
To find the probability of a data point with z-score , we will subtract half of 68% from 50%.
Therefore, the probability of a lion living longer than 10.1 years is approximately 16%.
