3. Use graph notes and know meanino RANGE and IQR. 9 points
The box plot summarizes the noon
temperatures in degrees Fahrenheit for
the month of April.
Temperatures at Noon in April
+ + +
40 44 48 52 56 60 64 68 72
Temperature (°F)
What are the range and the interquartile
range of the temperatures? (6.12C |
Lesson 15)
A Range: 26; interquartile range: 16
B Range: 70; interquartile range: 16
C Range: 16; interquartile range: 26
D Range: 26; interquartile range: 8

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation:

2+2 obliviously is 4.