Answer:
(6.8,8)
Step-by-step explanation:
mean=7.4
standard deviation=0.2
we have to find the range in which at least 88.9% of the data will reside
1-1/k²=0.889
1/k²=1-0.889
1/k²=0.111
k²=1/0.111=9.009
k=3.002
so, k=3
The range of values can be computed as mean±k(standard deviation).
Thus, the range in which at least 88.9% of the data will reside is
(mean-k(standard deviation), mean+ k(standard deviation))
(7.4-3(0.2),7.4+3(0.2))
(7.4-0.6,7.4+0.6)
(6.8,8)
Thus, the range in which at least 88.9% of the data will reside is (6.8,8).
Well i cant really answer that with the info given
Answer:
144000
Step-by-step explanation:
Answer:
Perpendicular.
Step-by-step explanation:
Since x is postive in one equation and negative in the other, it is an indicator that both x's go in different directions.
Here it is graphed:
Answer:
The answer is a = 1/4 , b = 0 and c = 5
Step-by-step explanation:
∵ 1/4 x² + 5 = 0 is a quadratic equation
∵ ax² + bx + c = 0 is the general form of the quadratic equation
∴ a = 1/4
∴ b = 0
∴ c = 5