Answer:
Step-by-step explanation:
This is a standard normal distribution which means it has a mean of 0 and a standard deviation of 1. To shade 1 and 2 standard deviations above the mean just color in the area under the curve between 1 and 2
The percent of data is equal to .9772-.8413= .1359= 13.59%
Answer:
all real numbers
Step-by-step explanation:
range is the possible y values, the graph stretches from negative infinity to positive infinity.
Answer:
He does that because he is short and his hand can't reach the 20th floor button
Step-by-step explanation:
Mitch does that simply because he is short.
When he is leaving, he doesn't need to reach the 20th floor button because the button is way taller than the reach of his hands whereas when he is returning he has to reach the 20th floor button but his hand can only reach the 15th floor button. Thus, he gets to the 15th floor and walks up the remaining 5 flights.
This is the distributive property of multiplication. The -2 was distributed into the parentheses.
