Answer:
a) the mean is $53.50
b) it is a statistic
Step-by-step explanation:
mean = ∑fx/∑f
∑f = 20
mean = (sum of the terms) ÷ (number of terms)
mean = (53+49+54+50+21+46+75+45+63+76+61+63+36+34+54+63+37+62+66+62) ÷ 20 = 1070/20
=$53.50
b) it is statistics because it is a random sample of 20 residential customers not the actual population
Answer:
Step-by-step explanation:
y+1=-3(x-5)
y + 1 = -3x + 15
y = -3x + 15 - 1
y = -3x + 14
Slope m1 = -3
The required line is perpendicular to this y+1=-3(x-5)
so. m1 * m2 = -1
-3*m2 = -1
m2 = -1/-3 = 1/3
Slope = 1/3; pass through (4, -6)
y -y1 = m(x-x1)
y - [-6] = 1/3 (x - 4)
y + 6 = 1/3 (x - 4)
y + 6 = 1/3x - 4/3
y = 1/3x - 4/3 +6 {-4/3 + 6 = -4/3 + 6*3/1*3 =-4/3+18/3 =(-4+18)/3 = 14/3}
y= 1/3x - 14/3
C because it's her average speed as it says in the sentence to explain it and the others arnt really saying what it is
Answer:
what is the question
Step-by-step explanation: