Find the values of x and y.
X=?
Y=?
Answers
Answer:
x=85
y=65
Step-by-step explanation:
Right angle equals 90
then 180-90-20=70
Opposite angle =70
so 70+25+x=180
x=180-70-25=85
when u know x ,then 180-85=95
y=360-90-110-95=65
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You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a vowel. Write your answer as a fraction in simplest form.
Answers
Answer:
The answer is A)
Answer:
Step-by-step explanation:
maybe D im not sure tho
Answers
Answers
Final answer:
The 99% confidence interval for the proportion of US adults believing that raising the minimum wage will help the economy, based on a survey, is approximately (0.386, 0.454).
Explanation:
To compute the 99% confidence interval for the parameter of interest - the true proportion of adults believing that raising the minimum wage will help the economy - we use the formula for the confidence interval for a proportion: p ± Z*(sqrt((p(1 - p))/n)). Here p is the sample proportion, n is the sample size and Z* is the Z score corresponding to the desired confidence level, in this case 99%.
The given sample proportion (p) is 0.42 and the sample size (n) is 1000. The Z score for a 99% confidence interval is approximately 2.58.
Substituting these values into the confidence interval formula yields: 0.42 ± 2.58 * sqrt((0.42(1 - 0.42))/1000). After computation, we obtain the 99% confidence interval as (0.386, 0.454).
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Answers
Answer:
a) 0.2119 = 21.19% probability that the average percent of fat calories consumed is more than thirty-seven.
b) The first quartile for the average percent of fat calories is 33.31
Step-by-step explanation:
To solve this question, we have to understand the normal probability distribution and the central limit theorem.
Normal probability distribution:
Problems of normally distributed samples are 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.
Central limit theorem:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, a large sample size can be approximated to a normal distribution with mean
and standard deviation
In this problem, we have that:
(a) For the group of 16 individuals, find the probability that the average percent of fat calories consumed is more than thirty-seven. (Round your answer to four decimal places.)
This is the 1 subtracted by the pvalue of Z when X = 37. So
By the Central Limit Theorem
has a pvalue of 0.7881
1 - 0.7881 = 0.2119
0.2119 = 21.19% probability that the average percent of fat calories consumed is more than thirty-seven.
b) Find the first quartile for the average percent of fat calories. (Round your answer to two decimal places.) percent of fat calories
The 1st quartile is the 25th percentile. So this is the value of X when Z has a pvalue of 0.25. So it is X when Z = -0.675. So
The first quartile for the average percent of fat calories is 33.31
C. A neutral beryllium atom
D. A positively charged beryllium ion
Answers
This image represents A positively charged beryllium ion.
We have given that,
He 4 Protons e 5 Neutrons = 2 Electrons
A. A negatively charged beryllium ion
B. A neutral boron atom
C. A neutral beryllium atom
D. A positively charged beryllium ion.
We have to determine, Based on information from the periodic table what does this image represent?
What is the periodic table?
A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
This image represents A positively charged beryllium ion.
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Answer:
D. A positively charged beryllium ion
Answers
Answer:
6.5 minutes
Step-by-step explanation: