3 years ago

A 98% confidence interval is found to be (50, 60). What is the margin of error?

Mathematics

1 answer:

miss Akunina [59]3 years ago

3 0

Answer:

D. 5

Step-by-step explanation:

Mean: (50+60)/2

110/2

Margin of error:

60 - 55

You might be interested in

6. The first six terms in a quadratic pattern are

dexar [7]

Since 83-59=24, 83 is added by 28 so your answer would be 111.

5 0

3 years ago

Eight times the sum of a number and -2 is the same as nine times the number. Find the number

Alik [6]

Answer:

$let \: the \: unknown \: number \: be \: x \\ 8 (x + (- 2) = 9 \times x \\ 8 (x - 2) = 9 \times x \\ 8x - 16 = 9x \\ - 16 = 9x - 8x \\ - 16 = x \\ x = - 16$

5 0

2 years ago

If the frequencies of all possible outcomes of an event are the same the distribution is

marusya05 [52]

1. D
2. C
3. B
4. C
5. C
6. D

5 0

3 years ago

A trapezoid has a base of two and six and an area of 24 square units. What is the height?

Nezavi [6.7K]

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=&\stackrel{bases}{parallel}\\ &sides\\ h=&height\\ \cline{1-2} a=&2\\ b=&6\\ A=&24 \end{cases}\implies 24=\cfrac{h(2+6)}{2}\implies 24=\cfrac{h(8)}{2} \\\\\\ 24=4h\implies \cfrac{24}{4}=h\implies 6=h$

8 0

3 years ago

Which is the graph of f(x) = StartRoot x EndRoot?

Bingel [31]

The equation of the graph of $f(x) = \sqrt x$ is (d) on a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (4, 2).

The equation of the graph is represented as:

$f(x) = \sqrt x$

See attachment for the graph of $f(x) = \sqrt x$

From the attached graph, the curve passes through points (0,0) and (4,2).

Hence, the equation of the graph of $f(x) = \sqrt x$ is (d)

Read more about graphs and functions at:

brainly.com/question/3939432

8 0

2 years ago

Read 2 more answers