Answer:
a = 7, b =
Step-by-step explanation:
Using the sine ratio in the left right triangle and the exact value
sin45° = , then
sin45° = =
=
( cross- multiply )
a × = 7
( divide both sides by
)
a = 7
--------------------------------------------------------
Using the tangent ratio in the right triangle on the right and the exact value
tan60° = , then
tan60° = =
=
=
( multiply both sides by b )
b × = 7 ( divide both sides by
)
b = ×
=
Answer:
The correct option is
d) (179.20, 212.716)
Step-by-step explanation:
We have out of a random sample of 1000, 345 carried more than a bag
Therefore in the question our X = 345 passengers carry more than a piece of luggage
n = 1000
Therefore the probability of a passenger carrying more than one luggage = 345/1000 = 0.345
The confidence interval estimator of p is given by
where p' = 0.345 = probability of desired outcome
n = 1000 = Population size
z at 95 % = Confidence interval estimate, the value is sought from the distribution table as z value is 1.96 at 95 % confidence level
We have which gives
0.3745 or 0.3155
Which gives the range of confidential interval estimate as
212.695 to 179.224 which is equivalent to
d) (179.20, 212.716).
Solution
Solve
Step 1: Evaluate and cross multiply
Step 2: Collect like terms
Answer:
I just took the quiz and got it correct :)
Step-by-step explanation:
Look at the image down below, I hope this helps!
