A random sample of 9 observation from a normal population yields the observed statistics 9 1 x = 5 and Xx)2 = 36. A 95% confidence interval for u? is 8 i= 1 O a. 5± 2 O b. 5± 4.62 O c. 5± 4 O d. 5± 12

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Q: 6)270

A: Given data:   The given expression is 270/6.     The number 270 can be written as, 270=3×90=3×2×45

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A: Given,  A circle with secant and tangent  We have to find the value of x

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A: Will use basic trigonometry to solve this. Particularly we will use sine of x.

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A: We have to find b

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A: We can make it easier for you.

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A: The solution is:

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A: Topic = Inequalities

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A: Given

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Q: 3. Evaluate

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A: It is an important part of statistics. It is widely used.

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A: The formula to calculate the approximate value of the area under the curve is, Area ≈ ∑i=1nf(ci)∆x…

Q: 41. 2625

A: Given problem:- simplify  26254

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.