Mathematics, 29.10.2020 16:30, skylarbrown018

Draw two cards from a standard 52-card deck with replacement. Find the probability of getting at least one black card.

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answered: blaze9889t

The value is $P(s) = \frac{3}{4}$

Step-by-step explanation:

From the question we are told that

The number of cards in a standard deck of cards is n = 52

The number of black card in a standard deck of cards b = 26

The number of non-block cards in a standard deck of cards k = 26

Generally the probability of getting a black card is

$P(b) = \frac{26}{52}$

=> $P(b) = \frac{1}{2}$

Generally the probability of getting a non- black card is

$P(k) = \frac{26}{52}$

=> $P(k) = \frac{1}{2}$

Generally the sample space of the outcome of drawing two card from the

standard deck of cards in such a way that at least one of the cards is a black card is

$s = \{ bb , bk , kb \}$

Generally the probability of obtaining at least on black card is mathematically represented as

$P(s) = \frac{1}{2} * \frac{1}{2} + \frac{1}{2} * \frac{1}{2} + \frac{1}{2} * \frac{1}{2}$

=> $P(s) = \frac{1}{4} + \frac{1}{4} + \frac{1}{4}$

=> $P(s) = \frac{3}{4}$

answered: Guest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

answered: Guest

-2/

What is the slope of the line? 1) -5/2 2) -2/5 3) 2/5 4) 5/2

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Draw two cards from a standard 52-card deck with replacement. Find the probability of getting at lea...