DISTRIBUSI PROBABILITA KONTINU

Presentasi berjudul: "DISTRIBUSI PROBABILITA KONTINU"— Transcript presentasi:

1 DISTRIBUSI PROBABILITA KONTINU
PT Hari Jaya memproduksi barang pecah belah seperti gelas, piring dll. Perusahaan memberikan kesempatan kepada konsumen untuk menukar barang yang telah dibeli dalam hari itu apabila ditemui barang cacat. Selama pelaksanaan program ini, ada 10 orang rata-rata yang menukarkan barang karena cacat dengan standar deviasi 4 orang per hari. Berapa peluang ada 20 orang yang melakukan penukaran barang pada suatu hari

2 DISTRIBUSI PROBABILITA KONTINU
Diketahui X mempunyai distribusi normal dengan rata-rata 20 dan deviasi standar 4. Hitunglah probabilta bahwa rata-rata sampel X yang didasarkan pada sampel sebesar 64 akan : a. melebihi 21 b. terletak antara 19 dan 21 c. melebihi 18

3 DISTRIBUSI PROBABILITA KONTINU
In an office building the waiting time for an elevator is found to be uniformly distributed between zero and five minutes. What is the probability density function f(x) for this uniform distribution? What is the probability of waiting longer than 3.5 minutes? What is the probability that the elevator arrives in the first 45 seconds? What is the probability of a waiting time between one and three minutes? What is the expected waiting time? Mensa is the international high-IQ society. To be a Mensa member, a person must have an IQ of 132 or higher. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what percentage of the population qualifies for membership in Mensa?