Answer:
0.9544 or 95.44%
Step-by-step explanation:
The empirical rule indicates that the percentage of data falls in one standard deviation, 2 standard deviation and 3 standard deviation are 68.26%,95.44% and 99.73%
We are given that x1=52, x2=76 ,mean=64 and standard deviation=6
mean+sd= 64+6=70
mean-sd=64-6=58
mean+2*sd=64+12=76
mean+2*sd=52
x1 and x2 are within 2 standard deviation and the percentage of data lies between two standard deviation is 95.44%.
Answer:
6
Step-by-step explanation:
1. add 6x to both sides
2. subtract 6 from both sides
3. divide both sides by 4
Answer: lol
Step-by-step explanation: get trolled
Answer:
D. survey those seventh-grade students who participated in this year’s art fair
Step-by-step explanation:
The people who participated in the art fair will most likely want to go to the art museum, which is a biased result.
