Consider the normal distribution curve,
o=7
Which statements are true about the curve? Check all
that apply
The standard deviation of the data is 64.
The variance of the data is 49.
The median is 64
The data point 75 is less than one standard
deviation from the mean.
The data point 50 is two standard deviations away
from the mean.

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

go on the tube you might find some information there

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )