Answer:
I got 23 so I am not sure sorry
To get the probability of obtaining exactly 7 heads if a coin is tossed 16 times, we model this using the binomial distribution;
p(x)=(n!)/[(n-x)!x!]p^xq^(n-x)
where:
n=number of ways an event can occur=16
x=number of times tails can occur=7
p=probability of success=1/2
q=probability of failure=1/2
thus the answer to our question will be:
p(x)=(16!)/[(16-7)!(7!])*(0.5)^7*(0.5)^(16-7)
=11,440*0.5^7*0.5^9
=0.17456
the answer is, the probability is 0.17456
The matrix represents
-3x + 5y = 15
2x + 3y = -10
Answer:
x=-3+4t\\
y =5-7t
Step-by-step explanation:
we are given that when two point (x1,y1) and (x2,y2) are joined the parametric equation representing the line segment would be
Our points given are
So substitute the values to get
Hence parametric equations for the line segment joining the points
(-3,5) and (1,-2) is
Because -3 = 2 in not mathematically possible, the system has no solutions.