How do you find the median on a dot plot
1 answer:
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Picture relating to the question can be found in the picture attached below.
Answer:
Angle DCA = Angle CAB
Angle A + Angle B + Angle C = 180°
18 + 3x + 3x = 180
27°
Step-by-step explanation:
For 1:
Angle DCA = Angle CAB (Alternate angles are equal)
Angle DCA = 18°, Hence, CAB = 18°
2)
Angle A + Angle B + Angle C = 180° (sum of interior angles in a triangle)
3.)
Angle A = 18°
Angle B = 3x
Angle C = 3x
18° + 3x + 3x = 180°
4.)
18 + 3x + 3x = 180
18 + 6x = 180
6x = 180 - 18
6x = 162
x = 162 / 6
x = 27°
Answer:
Boxplot A
Step-by-step explanation:
Given the data:
22, 25, 50, 58, 28, 24, 25, 51, 43, 32, 49, 38
We should obtain the 5 number summary and check which boxplot correctly displays the information :
Reordered data : 22, 24, 25, 25, 28, 32, 38, 43, 49, 50, 51, 58
. Maximum = 58
Minimum = 22
Lower quartile : 1/4(n+1)th term
n = 12
1/4(13)th term = 3.25
(3rd + 4th) = (25 + 25) /2 = 25
Median :
1/2(13)th = 6.5th term
(32 + 38) /2 = 35
Upper quartile :
3/4(13)th term 9.75 term
(49 + 50) / 2
= 49.5
