Ask question

Ask question

All categories

sertanlavr [38]

4 years ago

5

Three cards are chosen from a standard deck of 52 playing cards with replacement what is the orobsbility every card will be a he

art

1 answer:

Ne4ueva [31]4 years ago

7 0

1/4 x 1/4 x 1/4 = 1/64

There is a 1/64 chance that they will all be hearts.

You might be interested in

The town of Hayward (CA) has about 50,000 registered voters. A political research firm takes a simple random sample of 500 of th

timama [110]

Answer: (0.076, 0.140)

Step-by-step explanation:

Confidence interval for population proportion (p) is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where $\hat{p}$ = sample proportion.

n= sample size.

$\alpha$ = significance level .

$z_{\alpha/2}$ = critical z-value (Two tailed)

As per given , we have

sample size : n= 500

The number of Independents.: x= 54

Sample proportion of Independents $\hat{p}=\dfrac{x}{n}=\dfrac{54}{500}=0.108$

Significance level 98% confidence level : $\alpha=1-0.98=0.02$

By using z-table , Critical value : $z_{\alpha/2}=z_{0.01}=2.33$

The 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters will be :-

$0.108\pm (2.33)\sqrt{\dfrac{0.108(1-0.108)}{500}}\\\\=0.108\pm2.33\times0.013880634\\\\=0.108\pm0.03234187722\\\\\approx0.108\pm0.032=(0.108-0.032,\ 0.108+0.032)=(0.076,\ 0.140)$

Hence, the 98% confidence interval for the true percentage of Independents among Haywards 50,000 registered voters.= (0.076, 0.140)

8 0

3 years ago

What is 9/12 in simplest form

sergiy2304 [10]

3/4…
To simplify a fraction, you have to find a similar factor between the numerator and denominator. In this case, it would be 4.
You would divide both numbers by this common factor and create a new fraction.
So… 9/3=3, and 12/3=4. When combined, the answer becomes 3/4.

7 0

3 years ago

Terrion and Johnny are racing across the football field during practice. Terrion has run 89/100 of the field, and Johnny has run

stepan [7]

Answer:

They ran it equally

Step-by-step explanation:

89/100 equals 0.89: 89 divided by 100 = 0.89.

4 0

2 years ago

Evaluate y when x=-5. y=3x-6

Sav [38]

Answer:

x= -5

y= -21

Step-by-step explanation

I hope that is the answer you are looking for!And Brainiest is needed!

4 0

3 years ago

Read 2 more answers

Which ordered pairs make the open sentence true?

Hitman42 [59]

Answer:

-2,1

Step-by-step explanation:

hope it will be helpful for i

8 0

3 years ago