1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RUDIKE [14]
2 years ago
10

A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is a black card given that it is an

ace.
Mathematics
1 answer:
Pavlova-9 [17]2 years ago
5 0

probability of getting black card an ace =2/52=1/26

You might be interested in
A researcher conducted a paired sample t-test to determine if advertisements were viewed more in the morning (before noon) or in
Natalija [7]

Answer:

b. No, there was no difference between Morning (M= 32), and Evening (M=40.625), (t [7] = 1.15, p > .05).

Step-by-step explanation:

The critical value for one tailed test is t ∝(7) > 1.895

A one tailed test is performed to test the claim that advertisements were viewed more in the morning (before noon) or in the evening (after 5pm)

The null and alternative hypotheses are

H0: μm = μe   vs     Ha μm > μe

where μm is the mean of the morning and μe is the mean of evening.

The calculated value of t = -1.152587077  which is less than the critical region hence the null hypothesis cannot be rejected .

P(T<=t) one-tail 0.143458126 > 0.05

If two tailed test is performed the critical region is t Critical two-tail 2.364624252

and the calculated t value is  -1.152587077  which again does not lie in the critical region .

Hence μm =  μe or    μm ≤ μe

P(T<=t) two-tail 0.286916252  > 0.025

Therefore

b. No, there was no difference between Morning (M= 32), and Evening (M=40.625), (t [7] = 1.15, p > .05).

Option b gives the best answer.

6 0
3 years ago
The number of student of schoolwas 450 last year and it is 396 this year.By how many percent did the number decrease
zhannawk [14.2K]

Step-by-step explanation:

450 - 396 = 54

(54/450) * 100% = 12%

Hence the decrease is 12%.

3 0
3 years ago
Read 2 more answers
1.) If I am selling a dozen at $3, how much would each egg cost?
riadik2000 [5.3K]

Answer:

1.$3÷12=0.25

each egg would cost 25 cents

2.12×18=216

216×25=5,400

6 0
3 years ago
Can anyone help me?
Ray Of Light [21]
Y = √(-x + 3)
Domain: x ≤ 3

y = √(3x)
<span>Domain: x ≥ 0</span>
8 0
3 years ago
1. Find the capacity in litres of a bucket 24cm in
Sav [38]

Answer:

6.36l

Step-by-step explanation:

We compute first the volume:

V=pi×h/3×(R²+r²+rR), where h=20cm is the height, R=24/2=12cm is the top radius, r=16/2=8cm is the bottom radius.

We get: V=pi×20/3(12²+8²+12×8)=

20×pi/3(144+64+96)cm³

V=20×pi/3×304=6363.73cm³

In dm³ we have (divide by 1000) V=6.36dm³

By definition, 1dm³=1l, so the capacity is 6.36l

8 0
3 years ago
Other questions:
  • Multiply the rational expression
    6·2 answers
  • Asmaa is shopping for an infant car seat. She has a coupon for 20% off any purchase over $35
    6·2 answers
  • 1\4x 12 please help me get answer
    5·2 answers
  • Find the probability of obtaining exactly one tail when flipping nine coins. Express your as fraction terms on a rounded the nea
    6·1 answer
  • Lily wants to buy 4 pounds of cereal for her camping trip. The boxes are each 18 ounces. According to the number line, how many
    14·1 answer
  • Please answer these correctly :(. i just need these two pls &lt;333
    5·1 answer
  • Please help and explain you answer please!
    11·2 answers
  • A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form (y = mx + b) fo
    9·1 answer
  • Question 5 (1 point)
    15·1 answer
  • Find the measure of angle A<br> (Please provide work)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!