Answer:
5/7
Step-by-step explanation:
There are 7 cards, all of which have an equal chance of being chosen.
And in this case, because there are 7 cards in total, they each have a 1/7 chance of being chosen. Because there are 5 cards greater than 4, you have a 5x1/7 chance =5/7 chance of choosing a number greater than 4.
P.S. If you need it as a percentage, then it is 71.428571%.
P.P.S. Remember if you like the answer then mark as brainliest thank you!
The missing values in the given question is shown below.
A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of 1.5 milligrams and a standard deviation of 0.52 milligrams. What is the probability that 50 randomly selected light cigarettes from this company will have a total combined nicotine content of 81 milligrams or less, assuming the company's claims to be true? Carry your intermediate computations to at least four decimal places. Report your result to at least three decimal places.
Answer:
P(x ≤ 1.62) = 0.949 to three decimal places.
Step-by-step explanation:
From the question; given that:
The population mean = 1.5
The standard deviation = 0.52
The sample size n = 50
The sample mean = 1.62
Hence; we can calculate the required probability as:
From z - tables;
P(x ≤ 1.62) = 0.9486
P(x ≤ 1.62) = 0.949 to three decimal places.
Answer:
In bold below.
Step-by-step explanation:
There are 2 whole circles shaded and the other has 3 parts out of 5 shaded.
Mixed number = 2 3/5.
Improper fraction = 13/5.
for question 1
Area of Base B =45×25 = 1125 cm²
perimeter of base P = 2(45+25) = 140 cm
Height = 15 cm
Using the formula
Surface area = 2B + Ph
A = 2×1125 + 140×15= 4350 cm²
Voume = Bh = 1125×15= 16875 cm³
For question 2,
Area of base = 7× 5/2= 17.5 cm²
Perimeter of base = (7+7+7) = 21 cm
Surface area = 2B + Ph
Surface area of prism = 2×17.5+ 21×10 = 245cm²
Volume = Bh = 17.5×10 = 175 cm³