Answer:
C,110°
Step-by-step explanation:
when the angle on circumference=50°
then the angle at center=2×50=100°
other angles of this triangle are equal and each=1/2(180-100)=1/2×80=40
so angle of quadrilateral=30+40=70°
as opposite angles of a cyclic quadrilateral are supplementary.
so y+70=180
y=180-70=110°
Interquartile Range: 47.5
standard deviation for the data
set? 112, 149, 112, 148, 139, 121, 116, 134,148
<span>Express your answer as a decimal to the nearest
tenth=15.9</span>
35,23,32,25,27,31,29,30
1st: Order data from smaller to greater: 23,25,27,29,30,31,32,35
2nd Find the median of the set (central value). Since the number of data is even, then the median is the average between 29 & 30 = (29+30)/2 =29.5,(we will not use the median value, just for indication)
3rd, Find the central value of the subset on the left of 29 (that is 23,25,27)
This lower median =25 . This is called Q1
4th , Do the same with the subset on the right of 30 (that is 31,32,35).
This higher median = 32 is called Q3 (for your info the 1st median=29.5 is Q2)
The IQR or inter quartile range is Q3 - Q1 (or upper - lower Q)
IQR = 32-25) =7
Answer:
i dont know
Step-by-step explanation:
