Answer:
0.2006
Step-by-step explanation:
The probability the first calculator is defective is 42/62.
The probability the second calculator is defective is 41/61.
The probability the third calculator is defective is 40/60.
The probability the fourth calculator is defective is 39/59.
The probability all four calculators are defective:
(42/62) (41/61) (40/60) (39/59) = 0.2006
Answer:
8x³-14x²
Step-by-step explanation:
(4x-7) * 2x^2 = 8x³-14x²
So this time, multiply 105 by 2 to get the diameter. You will have it as 210 ft. Multiply this by 3.14 and the circumference is 659.4
ft.
The correct option regarding the data-sets represented by the box and whisker plots is:
B. The distribution for town A is positively skewed, but the distribution for town B is symmetric.
<h3>What does a box-and-whisker plot shows?</h3>
A box and whisker plot shows three things:
- The 25th percentile, which is the median of the bottom 50%.
- The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.
- The 75th percentile, which is the median of the upper 50%.
For data-set A, we have that:
- The 25th percentile is of 15.
- The 75th percentile is of 30.
Since 30 - 20 > 20 - 15, the distribution is positively skewed.
For data-set B, we have that:
- The 25th percentile is of 20.
- The 75th percentile is of 40.
Since 40 - 30 = 30 - 20, the distribution is symmetric.
Hence the correct option is:
B. The distribution for town A is positively skewed, but the distribution for town B is symmetric.
More can be learned about box and whisker plots at brainly.com/question/27721471
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Answer:
3:4
Step-by-step explanation:
Before we start to deal with the ratio, we need all lengths in the same units.
The width is 18 inches.
The height is 2 feet.
Let's convert the height to inches. Then we will have both dimensions in the same units, inches.
2 ft * (12 in.)/ft = 24 in.
Now we have:
width = 18 in.
height = 24 in.
ratio of width to height = 18 in. to 24 in. = 18/24 = 3/4 = 3:4