Answer:
2,3,6,7
Step-by-step explanation: Standard form is Ax+By=C
Number one and 4 are in point slope form. Number 5 has no y.
Answer:
Option (c) is correct.
68% of the data points lie between 10 and 18.
Step-by-step explanation:
Given : a normal distribution with a standard deviation of 4 and a mean of 14
We have to choose the sentence that correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14.
Since, given 68% data.
We know mean of data lies in middle.
And standard deviation is distribute equally about the mean that is 50% of values less than the mean and 50% greater than the mean.
So, 68% of data lies
mean - standard deviation = 14 - 4 = 10
mean + standard deviation = 14 + 4 = 18
So, 68% of the data points lie between 10 and 18.
Answer:
Given that the events A and B are mutually exclusive.
P(A) = 0.1
P(B) = 0.4
Mutually Exclusive Events: When two events are Mutually Exclusive it is impossible for them to happen together i.e
If A and B are two events then; P(A and B) = 0
then;
P(A or B) = P(A) +P(B)
By the definition of mutually exclusive events;
P(A or B) = P(A) +P(B) ......[1]
Substitute the values of P(A) = 0.1 and P(B) = 0.4 in [1] we have;
P(A or B) = P(A) +P(B) = 0.1+0.4 = 0.5
Answer:
t = 1.025c + 5.99
Step-by-step explanation:
The shipping charge, = $5.99
Tax paid on purchases = 2.5%
Cost of item, c
Total cost, t, including shipping and tax
Total cost = Cost of item + tax on purchase +. Shipping fee
Tax on purchase : 2.5% * cost of item
Tax on purchase : 0.025c
Shipping = $5.99
General formula for a linear equation :
y = mx + c
Hence, for the cost model:
Total cost = Cost of item + tax on purchase +. Shipping fee
t = c + 0.025c + 5.99
t = 1.025c + 5.99
