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
o-na [289]
3 years ago
8

Tyler selects one card from the three(4,5, and a King), and rolls a number cube. What is the probability that she selects the 5,

and rolls a number less than 5?
Mathematics
1 answer:
Svet_ta [14]3 years ago
6 0

\frac{1}{3}Answer:

2/9

Step-by-step explanation:

given that Tyler selects one card from the three(4,5, and a King), and rolls a number cube.

We find that A the event of selecting one card and B getting a number on rolling a number cube are independent events.

No of cards = 3

Prob of selecting 5 from 3 cards = P(1,2,3, or 4) = \frac{2}{3}

When rolling a number cube (assuming fair) there is equally likely for all numbers to appear from 1 to 6

Prob of getting 5 =\frac{1}{6}

Prob of getting less than 5 =

Since these two events are independent,

the probability that she selects the 5, and rolls a number less than 5

= Product of probabilities

= \frac{1}{3}*\frac{2}{3}

=\frac{2}{9}

You might be interested in
There are less than 200 apples in a box. It is known that 2,3,4,5, and 6 kids can share these apples evenly. How many apples can
bekas [8.4K]

Answer:

60/120/180

Step-by-step explanation:

Either of these would work because it must be an even number divisible by 2.

It must end in a zero : divisible by 5 but even.

It must be a multiple of 30 as 3 only goes into 10s at 30. And that takes care of the 6 too.

But 4 doesn't go into 30, so 60?….

Yes, 60 is divisible between 2, 3, 4, 5 and 6

But the question does not limit your answer to one solution.

I hope this helps! :)

8 0
3 years ago
In a study on the time that
krok68 [10]

The 95% confidence interval of the population mean, in years, is (4.3, 5.3). 4 years is not part of the confidence interval, which means that it contradicts the fact that 39% of students get their college degree in four years.

-----------------------------

To solve this question, we need to find the confidence interval for the amount of time it takes the students to get the degree.

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

-----------------------------

The first step to solve this problem is finding how many degrees of freedom,which is the sample size subtracted by 1. So

df = 80 - 1 = 79

-----------------------------

95% confidence interval

Standard level of confidence, we have to find a value of T, which is found looking at the t table, with 79 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 1.9905.

-----------------------------

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.9905\frac{2.2}{\sqrt{80}} = 0.5

In which s is the standard deviation of the sample and n is the size of the sample.

-----------------------------

The lower end of the interval is the sample mean subtracted by M. So it is 4.8 - 0.3 = 4.3 years.

The upper end of the interval is the sample mean added to M. So it is 4.8 + 0.3 = 5.3 years.

-----------------------------

The 95% confidence interval of the population mean, in years, is (4.3, 5.3). 4 years is not part of the confidence interval, which means that it contradicts the fact that 39% of students get their college degree in four years.

A similar question is given at brainly.com/question/24278748

6 0
3 years ago
How to find the y- intercept of y=3^x+9x-14
Bas_tet [7]
Your y-intercept would be (0,-13)
8 0
3 years ago
Find the tenth term in the sequence: 12,10,8,...<br> a) -10<br> b) -6<br> c) -8<br> d) -18
raketka [301]
The answer is -6. because 12,10,8,6,4,2,0,-2,-4,-6.
6 0
3 years ago
Read 2 more answers
If |a| = |b| then does a = b?
kondor19780726 [428]

Answer:

yes, if |a|=|b| then a = b......

3 0
3 years ago
Other questions:
  • What number is 3/10 of 20
    13·2 answers
  • A circle with radius of 2cm sits inside a 11cm×12cm rectangle.
    8·2 answers
  • Which expression calculates the time in hours an object takes to travel 38 miles at a speed of 2 m/hm/h ?
    13·1 answer
  • A triangle ABC with vertices A(6,8) B(6,12) C(10,12) is rotated to 180. What are the coordinates of B
    15·1 answer
  • There are five different colored cards in a hat (red, blue, green, yellow, and black). A card is randomly drawn and not replaced
    8·2 answers
  • 10 increased by the quotient of a number and 2 is -15
    11·1 answer
  • The U-Pick-It Farm wants to find out which type of berries their customers
    9·1 answer
  • NOT TO
    6·1 answer
  • What is the value of the expression below when x=7? 5x-3
    5·2 answers
  • Find the measure of the angles indicated
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!