The first option reduces to 1 and the second one reduces to -1.
Answer:
a= 1%
b= 0.1%
c= 0.1875% probably have to round
Step-by-step explanation:
a= 2/2= 1
B= 1/10=0.1
c= 1.5/8= 0.1875
Sample space ={13 H + 13 D + 13 S + 13 C} = 52 cards
P(getting one heart) = 13/52 = 1/4
P( getting NO heart) = 1-1/4 = 3/4 = 0.75
Answer:
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 26
The mean is
The standard deviation is 
From the question we are told the confidence level is 95% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the margin of error is mathematically represented as
=>
=>
Generally 95% confidence interval is mathematically represented as
=>
=>
Its mean 130000÷12
wish that my answer help u