The conditional relative frequency table was generated
using data that compared a student's grade level and
whether or not they are involved in after-school activities.
Given that a student is in 10th grade, what is the probability
that the student is also not involved in after-school
activities?
Total
After-School
Activities
0.43
0.45
O
After-School
Activities
0.57
0.45
0.51
10th Grade
11th Grade
Total
0.55
0.43
0.55
0.49
5

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:

sounds & other waves originate from any vibrating object

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.