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
alexgriva [62]
2 years ago
9

According to a Department of Labor report, the city of Detroit had a 20% unemployment rate in May. Eight working-age residents w

ere chosen at random. What is the probability that at least two of the residents were unemployed?
Mathematics
1 answer:
ExtremeBDS [4]2 years ago
4 0

Answer: 0.49668352

Step-by-step explanation:

Given : The unemployment rate : p = 20%= 0.20

Sample size : n =8

Let x be the binomial variable that represents the number of unemployed residents.

Binomial probability distribution formula : ^nC_xp^x(1-p)^x

The probability that at least two of the residents were unemployed :

P(x\geq2)=1-P(x

1-(^8C_0(0.2)^0(0.8)^8+^8C_1(0.2)^1(0.8)^7)

1-((1)(0.16777216)+(8)(0.2)(0.2097152))

1-(0.16777216+0.33554432)

1-(0.16777216+0.33554432)=1-0.50331648=0.49668352

Hence, Required probability =0.49668352

You might be interested in
45 is 3% of what number?<br><br> quick I need an answer!<br> hurry pls!
Airida [17]

Answer:

stop rushing brat

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
3, 10, 17, 24. what is the 50th term in the sequence
Kamila [148]
Check if you can write an equation relating the term number to the actual value
n1=3
n2=10 = 3+7
n3= 17 = n2+7 = n1+7+7 = n1 +2*7
n4= 24 = n1+3*7

so you will notice a pattern
for the x-th term

n_x =3+(x-1)*7

the 50th term would be n_50 = 3+(50-1) * 7
4 0
3 years ago
Can somebody help me with my Geometry?​
bezimeni [28]

Answer:

∠KJL = 45°

∠x=45°

∠DBC=67.47°

Step-by-step explanation:

x+x=90

2x=90

x=45°

6 0
3 years ago
Read 2 more answers
To prepare for a bake-off, Chad used 520 grams of flour each day for 2 weeks. How many kilograms did Chad use in those 2 weeks?
Shalnov [3]

Answer:

7.280 k

Step-by-step explanation:

Given that  1 g = 0.001 k

If he uses 520 grams of flour each day for 2 weeks, since there are 7 days in a week, the total weight of flour used in two weeks

= 520 g * 2 * 7

= 7280 g

In kilograms

Since

1 g = 0.001 k

7280 g = 7280/1 * 0.001 k

= 7.280 k

3 0
2 years ago
Five times a number is greater then 25
Tems11 [23]
The answer might be 5 times 7 that is 35
6 0
3 years ago
Read 2 more answers
Other questions:
  • pilar bought 2/3 pound of turkey she ate 1/4 of the turkey for lunch how many pounds of turkey did she eat
    10·2 answers
  • Is 4m^2 - 3m = n linear or nonlinear??
    10·1 answer
  • Please help me with this question!!!
    13·1 answer
  • Figure A is a cylinder. Figure B is a cone. Figure C is a sphere. Figure D is at pyramid with rectangular base. Which statements
    10·2 answers
  • Find the volume in ft cubed
    10·1 answer
  • Kendra buy a magazine for $3 and four paperback books for $5 each. The expression 3 + 4 x 5 represents the total cost in dollars
    6·1 answer
  • Write the following decimal number in its equivalent fraction form. Show all work for full credit.
    15·1 answer
  • 2.24 equal in real life
    13·1 answer
  • Given line y-1/6x+9,find a perpendicular line to the given line passes through points (6,-3)?
    10·1 answer
  • Help pls dont give wrong answer just for points! .Question:There are 267 students and 21 adults going on a school trip.An equal
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!