REPOST PLEASE I NEED HELP I could really use some help with this guys:)................................................................................................................................................................................................................................................Groundhog's Day is on February 2nd each year. On this day, in Punxsatawney, Pennsylvania, thousands of onlookers watch to see if Phil, the groundhog, will cast a shadow. If he does, then six more weeks of winter are predicted. If he doesn't, then an early spring is predicted. Historically, Phil's prediction has only been correct about 40% of the time.
Using complete sentences, design a simulation to determine the probability that Phil's prediction will be correct at least two out of the next three years. Make sure to explain how you would use the simulation to determine the probability.

Answer:

There is significant evidence to support that more than 3% of the population of the city got infected by the virus.

Step-by-step explanation:

x = 40 ; n = 1000

phat = x / n = 40 / 1000 = 0.04 = 4%

H0 : p = 0.3

H1 : p > 0.3

The test statistic :

(Phat - P) ÷ √(p(1 - p) / n)

1 - p = 1 - 0.3 = 0.7

(0.4 - 0.3) ÷ √(0.3(0.7) / 1000)

0.1 ÷ 0.0144913

= 6.9

Pvalue ; Using the Pvalue from Zstatistic calculator :

Pvalue < 0.00001

Reject H0, if Pvalue < α

0.00001 < α ; We reject H0 ; Hence, there is significant evidence to support that more than 3% of the population of the city got infected by the virus.

Answer:

20.48

Step-by-step explanation:

the answer is not in d option

Answer:

D. 200

Step-by-step explanation:

Let the number to be found be y.  

Therefore, according to the question, we have the following linear equation:  

32/100 × y = 64  

Therefore, y = (64 × 100)/32 = 200

Hence, y is 200 and 32% of 200 is 64.

Answer:68

Step-by-step explanation:

I guesses but most likely right lol

7.8

They give you the radius, which is half the diameter.

3.9 * 2 = 7.8

answer:

1. 7.8 km

2. 17 ml

step-by-step explanation:

1 — 3.9 X 2 = 7.8 km

2 — 8.5 X 2 = 17 mi

Answer:

30

Step-by-step explanation:

20+12-E=2

32-E=2

-E=-30

E=30

Answer:

huh?

Step-by-step explanation:

Answer:

What is the diameter?

Step-by-step explanation:

Your radius is half of your diameter

Answer:

Step-by-step explanation:

P(A) = Probability of a student knowing how to play guitar

= no. of students who know how to play guitar / total no. of student

= 144/200

= 0.72

P(B) = Probability of a student is left-handed

=  no. of students who is left-handed / total no. of student

= 141/200

= 0.705

P(A) and P(B) are calculated to be two real numbers and do not depend on each other. So event A and B are independent.

Answer:

Step-by-step explanation:

P(A) = 144/200  = 0.72

P(B) = 141/200  = 0.705 = 0.71

The two probabilities are similar but different. From the table, a large number of students who play guitar are also left-handed: 116. So the two probabilities are NOT independent - if u are left-handed, u are more likely to play guitar n vice versa.

Answer:

6d+9c

Step-by-step explanation:

Answer:

6d+9c

Step-by-step explanation:

You speak my language :0

jsnhdnfdjenkenhfbtrhgnvc

Answer:

[tex]x =\sqrt 5[/tex]

[tex]y = \sqrt{5[/tex]

Step-by-step explanation:

Given

The attached triangle

Required

Solve for x

Considering angle 45 degrees, we have:

[tex]\cos(45) = \frac{y}{\sqrt{10}}[/tex] --- cosine formula i.e. adj/hyp

Solve for y

[tex]y = \sqrt{10} * \cos(45)[/tex]

In radical form, we have:

[tex]y = \sqrt{10} * \frac{1}{\sqrt 2}[/tex]

[tex]y = \sqrt{10/2}[/tex]

[tex]y = \sqrt{5[/tex]

To solve for x, we make use of Pythagoras theorem

[tex]x^2 + y^2 = (\sqrt{10})^2[/tex]

[tex]x^2 + y^2 =10[/tex]

Substitute for y

[tex]x^2 + (\sqrt 5)^2 =10[/tex]

[tex]x^2 + 5 =10[/tex]

Collect like terms

[tex]x^2 =10-5[/tex]

[tex]x^2= 5[/tex]

Solve for x

[tex]x =\sqrt 5[/tex]

9514 1404 393

Answer:

  Only Glass B is large enough

Step-by-step explanation:

For repetitive calculations, I like to use a calculator or spreadsheet. The attachment shows the volumes for the three glasses. Only Glass B has a volume that exceeds 75 cubic inches.

__

Note that Glass A has a diameter of 5 inches, so a radius of 2.5 inches.

Answer:

12

Step-by-step explanation:

because 6x=72 so you could do 72/6 which 72/6 is 12 so the answer is 12

Answer:

1 < a < 2

Step-by-step explanation:

8 < 2 (a+3) <10

8 < 2a+6 < 10 (Simplify all parts of the inequality)

8+ −6 < 2a +6+ −6 < 10+ −6 (Add -6 to all parts)

2 < 2a < 4

2/2 < 2a/2 < 4/2 (Divide all parts by 2)

=1 < a < 2

Answer:

E. 425

Step-by-step explanation:

Assuming that since there are 17 deer in one square, there must be 17 in each square, and knowing there are 25 squares, the answer is equal to 17*25 = 425

Answer:

AB←→

is a secant line.

Step-by-step explanation:

Not a chord because a chord ends and begins on a circular arch. (on the circle edge)

Cannot be a tangent line because a tangent line never touches the inside of a line.

Cannot be the diameter because a. it is always just inside the circle and I think it is the longest line (strait in the middle)

Can only be a secant line

In geometry, a secant of a curve is a line that intersects the curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant will intersect the circle at exactly two points.

Answer:

0.0825

Step-by-step explanation:

33/400=0.0825

Answer:

3.2

Step-by-step explanation:

0.8(4) = 3.2

Answer:

7

Step-by-step explanation:

Let the missing number of the data be x.

[tex] \because mean = \frac{3 + 4 + x + 7 + 2 + 1}{6} \\ \\ \therefore 4 = \frac{17 + x }{6} \\ \\ \therefore 4 \times 6 = 17 + x \\ \\ \therefore 24 - 17 = x \\ \\\therefore x = 7[/tex]

Thus, the missing number of the data is 7.

Answer:

A

E

F

Step-by-step explanation: there the even ones

Answer:

is this a joke question? it is very easy. one half or 1/2

Step-by-step explanation:

Answer:

-14

Step-by-step explanation:

(-12)+(-2)

You solve using Pemdas, doing the (-8/4) first, and then doing (-6)(2)

The answer is the two values added together.

as we are to find the perimetre of a circle 2πr

it will be 87.96m

since its a semi circle lets just divide by 2

now we get our answer that's 43.96m

Answer:

The sum of the series is: 749

Step-by-step explanation:

Given

[tex]a_1 = 8[/tex]

[tex]a_{14} = 99[/tex]

[tex]n = 14[/tex]

Required

The sum of the series

This is calculated using:

[tex]S_n = \frac{n}{2}[a_1 + a_n][/tex]

Substitute 14 for n

[tex]S_{14} = \frac{14}{2}[a_1 + a_{14}][/tex]

[tex]S_{14} = 7[a_1 + a_{14}][/tex]

Substitute values for a1 and a14

[tex]S_{14} = 7[8 + 99][/tex]

[tex]S_{14} = 7*107[/tex]

[tex]S_{14} = 749[/tex]

Answer:

-3.5+27

Step-by-step explanation:

-2.7+x=-3.5

x=-3.5-(-2.5)

x=-3.5+2.5

x=2.0

Given:

The function is:

[tex]g(a)=\dfrac{8-a}{4}[/tex]

To find:

The difference quotient of the function.

Solution:

Formula for difference quotient of the function f(x) is:

[tex]DQ=\dfrac{f(x+h)-f(x)}{h}[/tex]

We have,

[tex]g(a)=\dfrac{8-a}{4}[/tex]

The difference quotient of the function g(a) is:

[tex]DQ=\dfrac{g(a+h)-g(a)}{h}[/tex]

[tex]DQ=\dfrac{\dfrac{8-(a+h)}{4}-\dfrac{8-a}{4}}{h}[/tex]

[tex]DQ=\dfrac{\dfrac{8-a-h-8+a}{4}}{h}[/tex]

[tex]DQ=\dfrac{-h}{4h}[/tex]

[tex]DQ=-\dfrac{1}{4}[/tex]

Therefore, the difference quotient of the given function is [tex]-\dfrac{1}{4}[/tex].

Answer:

They are right, It is -1/4. The second one.

Step-by-step explanation:

Edge 2021

Answer:

47.1 ft

Step-by-step explanation:

dx[tex]\pi[/tex]=C

15x3.14=

47.1

Answer:

18

Step-by-step explanation: