সম্ভাব্যতা (Probability) MCQ 119+ প্রশ্ন ব্যাংক ও সমাধান

সম্ভাব্যতা (Probability) MCQ এর আরো 149 টি MCQ প্রশ্ন ও উত্তর সহ সকল এমসিকিউ প্রশ্ন + বিসিএস, ব্যাংক, প্রাইমারি সহ সরকারি বেসরকারি চাকুরীর পরীক্ষার প্রস্তুতি নিতে ও নিজেকে যাচাই করতে ডাউনলোড করুন Bissoy

• In a zoo, there are Rabbits and Pigeons. It heads are counted s, there are 200 and if legs are counted there are 580. How many pigeons are there ?
  ক

  90

  খ

  100

  গ

  110

  ঘ

  120
• A bag contains 2 red, 3 green and 2 blue balls .Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
  ক

  5/7

  খ

  2/7

  গ

  10/21

  ঘ

  11/21
• When they had a meeting seven company executives __ T, U, V, W, X, Y and Z ___ sit at a rectangular table .Three executives sit along one side of the table , and three sit along the other side, each directly opposite one of the other three. The seventh sits at the head of the table . There is no seat at the foot of the table . Ualways sits in one of te two seats farthest from the head of the table. Y and V always sit next to each other .V never sits next to Z . If Z does not sit at the head of the table, W sits there. If W sits directly opposite T, X must sit next to which of the following excutives?
  ক

  T

  খ

  U

  গ

  V

  ঘ

  Z
• All possible three digit numbers are formed formes by 1, 2, 3 . If one number is chosen randomly, the probability that it would be divisible by 111 is____
  ক

  2/9

  খ

  1/3

  গ

  1/4
• Four subjects ---physics, Chemistry, Mathematics and Biology ---were taught in four consecutive periods of one hour each starting from 8.00 a.m. At what time was the chemistry period scheduled? 1. Mathematics period ended at 10.00 a.m, which was preceded by Biology. 2. Physics was scheduled in the last period. 3. Mathematics period was immediately followed by Chemistry.
  ক

  Only 1

  খ

  Only 2

  গ

  Only 2 and 3

  ঘ

  Only 1 and either 2 or 3
• Certain numbers of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a gril hits a goal is 7/10 whereas the probability than a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
  ক

  14/50

  খ

  7/50

  গ

  2/5

  ঘ

  2/25
• Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
  ক

  14/50

  খ

  7/50

  গ

  2/5

  ঘ

  2/25
• A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior's name is placed in the lottery 3 times, each junior's name, 2 times, and each sophomore's, 1 time. What is the probability that a senior's name will be chosen?
  ক

  1/8

  খ

  2/9

  গ

  2/7

  ঘ

  3/8
• A number is selected at random from 40 to 59 inclusive . What is the probability that the number is prime number ?
  ক

  3/11

  খ

  3/10

  গ

  2/11

  ঘ

  1/5
• A fair coin is thrown in the air four times. If the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss ?
  ক

  3/4

  খ

  1/2

  গ

  1/8

  ঘ

  1/16
• In a group of buffaloes and ducks, the number of legs is 24 more than twice the number of heads. What is the number of buffaloes?
  ক

  12

  খ

  10

  গ

  8

  ঘ

  6
• A certain jar contain 60 jellybeans where 22 white, 18 green, 11 yellow, 5 red and 4 purple . If a jellybean is to be chosen at random , what is the probability that the jellybean will be neither red not purple?
  ক

  0.09

  খ

  0.85

  গ

  0.54

  ঘ

  0.91
• A hat contains 12 cards marked with a star and 18 unmarked cards. What is the probability that one card slelected at random will be marked with a star?
  ক

  3/5

  খ

  2/5

  গ

  2/3

  ঘ

  5/2
• আবহাওয়া অফিসের রিপোর্ট অনুযায়ী ২০২২ সালে মে মাসে চতুর্থ সপ্তাহে বৃষ্টি হয়েছে মোট ৫ দিন। ঐ সপ্তাহে রবিবারে বৃষ্টি না হওয়ার সম্ভাবনা কত?
  ক

  ২/৭

  খ

  ১/৭

  গ

  ১

  ঘ

  ৫/৭
• Jennifer flipped a coin three times and got heads each time. What is the probability that she gets heads on the next flip?
  ক

  1

  খ

  1/16

  গ

  1/2
• A coin is thrown 3 times in the air. What is the probability that one head is followed by two tails?
  ক

  12

  খ

  14

  গ

  18

  ঘ

  56
• একটি গোল মুদ্রা টেবিলে রাখা হল । এই মুদ্রার চারপাশে একই মুদ্রা কতটি রাখা যেতে পারে যেন তারা মাঝের মুদ্রাটিকে ও দু'প্রাশের দুটি মুদ্রাকে স্পর্শ করে ?
  ক

  ৪

  খ

  ৬

  গ

  ৮

  ঘ

  ১০
• একটি মুদ্রা ২ বার নিঃক্ষেপ করলে অন্তত ১ বার Head পড়ার সম্ভবনা কত?
  ক

  ১/৩

  খ

  ১/৪

  গ

  ৩/৪

  ঘ

  ১/২
• A die is rolled and a coin is tossed What is the probability that a 3 will be rolled and a tail tossed?
  ক

  1/2

  খ

  1/6

  গ

  1/8

  ঘ

  1/12
• Poppy flipped a coin three times and got heads each time. What is the probability that she gets heads on the next flip?
  ক

  1

  খ

  1/4

  গ

  1/2

  ঘ

  1/3
• লুডু খেলার দুটি ছক্কা একসাথে ফেলে প্রাপ্ত সংখ্যা ২টি যোগ করলে যোগফল ১০ হবার সম্ভবনা কত?
  ক

  ১/৩৬

  খ

  ১/১৮

  গ

  ১/১২

  ঘ

  ১/৬
• একটি থলিতে নীল বল ১২টি, সাদা বল ১৬টি এবং কালো বল ২০টি আছে। দৈবভাবে ১টি বল নেয়া হলো, বলটি সাদা না হওয়ার সম্ভাবনা কত?
  ক

  ১\৩

  খ

  ২/৩

  গ

  ১/১৬

  ঘ

  ১/৪৮
• What is probability than an integer selected at random from those between 20 ans 100 inclusive is a multiple of 15?
  ক

  5/79

  খ

  2/27

  গ

  5/81

  ঘ

  6/79
• A coin is tossed four times ... What is the probability of getting heard on all tosses?
  ক

  1/4

  খ

  1/8

  গ

  1/16

  ঘ

  3/16
• If four fair coins are flipped, what is the probability that they all will come up heads?
  ক

  3/16

  খ

  1/4

  গ

  1/8

  ঘ

  1/16
• In a simultaneous throw of two dice what is the probability of getting a doublet?
  ক

  1/6

  খ

  1/4

  গ

  2/3

  ঘ

  1/3
• Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?
  ক

  1/6

  খ

  5/8

  গ

  3/8

  ঘ

  5/6
• Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd?
  ক

  12

  খ

  23

  গ

  34

  ঘ

  13
• In a class, there are 15 boys and 10 girls . Three students are selected at random. The probability that 1 girl and 2 boys are selected, is -
  ক

  1/5

  খ

  21/46

  গ

  3/25

  ঘ

  1/50
• দুটি ছক্কা একসাথে ফেলে প্রাপ্ত সংখ্যা দুটি যোগ করলে যোগফল ১০ হওয়ার সম্ভবনা কত?
  ক

  ১/৩৬

  খ

  ১/১৮

  গ

  ১/৯

  ঘ

  কোনটিই নয়