Step-by-step explanation:
ALGEBRAIC PROOF!!!! PLS HELP!!! The area of a rectangular blanket is 20 square feet. The blanket's length is (2x + 1) ft and the
1 answer:
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The exponential growth rate of the baseball card given its price in 1975 and 1988 is 4.07%.
<h3>What is the exponential growth rate?</h3>The exponential growth rate is the rate of increase in the value of an asset with the passage of time.
Exponential equations have the form a
Growth rate = (future value / present value)^(1 / number of years)
(405 / 241)^(1/13) = 4.07%
To learn more about exponential functions, please check: brainly.com/question/26331578
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Answer:
48.41% probability that 17 or fewer of them are bilingual.
Step-by-step explanation:
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Can be approximated to a normal distribution, using the expected value and the standard deviation.
The expected value of the binomial distribution is:
The standard deviation of the binomial distribution is:
Normal probability distribution
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
When we are approximating a binomial distribution to a normal one, we have that ,
.
In this problem, we have that:
So
Probability that 17 or fewer of them are bilingual.
Using continuity correction, this is , which is the pvalue of Z when X = 17.5. So
has a pvalue of 0.4841
48.41% probability that 17 or fewer of them are bilingual.