Answer:
Point Q sry if wrong
Step-by-step explanation:
The answer is -403
The order of operations puts multiplication before subtraction. -1 x 372= -372, and -372-31= -403
Answer:
he would have a 20% chance he will pick a history book, so in decimal form it would be .2
Step-by-step explanation:
7+6+4+3=20
20*5=100
5*4=20
6in×2=12inches and 2/5×2=0.8 so the answer would be 12.8
Answer:
a) 25 is 3 standard deviation from the mean
b) Is far away from the mean, only 0,3 % away from the right tail
c) 25 is pretty close to the mean (just a little farther from 1 standard deviation)
Step-by-step explanation:
We have a Normal Distribution with mean 16 in.
Case a) we also have a standard deviation of 3 inches
3* 3 = 9
16 (the mean) plus 3*σ equal 25 in. the evaluated value, then the value is 3 standard deviation from the mean
Case b) 25 is in the range of 99,7 % of all value, we can say that value is far away from the mean, considering that is only 0,3 % away from the right tail
Case c) If the standard deviation is 7 then
mean + 1*σ = 16 + 7 =23
25> 23
25 is pretty close to the mean only something more than 1 standard deviation
