### inexact science | forecasting:

Forecast
* are a prediction based upon an educated guess
  - guesses about the future based on the past
* provide a prediction, or outlook, of future conditions.
* statistical synthesis of probabilities and expert opinion.

### inexact science | forecasting | forecast:

Economic forecast
* can affect the economy.
* prediction of future economic conditions.

Financial forecast
* are prognosis.
* support trading markets and risk management.

### inexact science | forecasting | forecast:

Weather forecast
* All weather forecasts begin with observations of what the weather is doing all over the world.
* are a subjective integration of several weather models and forecaster expertise
  - also an important part of black spot risk prediction and fungicide management
* are important for safety and economic reasons
  - to many people
  - often valley forecasts
  - predictions
  - predictive in nature and are subject to inherent uncertainty
  - vital to daily activities around the world
* depend on pictures and data from space.
* predict higher winds and temperatures and low humidity.

### inexact science | forecasting:

Prognosis
* Prognoses are poorer in older children and adults.
* affects their lifestyle choices, health care decisions, and overall outlook.
* also depends on the stage of the tumor
  - tumor stage
* defines the probability or likelihood for recovery or other outcomes.
* depends cognition and consciousness.
* depends on dose, dose rate, and body distribution
  - histology, site of disease and staging
* depends on the extent of disease at the time of diagnosis
  - lesion size and extent of spread
  - location, size, and rapidity of development of the hematoma
* depends on the severity of the malformations and the amount of brain malformation
  - toxicity
  - type of holoprosencephaly and the presence of associated anomalies
  - primarily on the depth of skin involvement and thickness of the tumor
* forms an integral part of systems for treatment selection and treatment planning.
* generally is lethal in the first few days of life.
* involves several factors related to stage, histology, and treatment.
* is affected by clinical and histological factors and by anatomic location of the lesion
  - also related to the type of myelodysplastic syndrome
  - dependant on the severity and extent of injury
* is dependent on the amount of degenerative joint disease present
  - extent of the underlying carcinoma
  - medical diagnosises
  - poor for the childhood form of disease
  - primarily dependent on cell type
  - used to forecast market shares, sales or profits using extrapolation
  - variable, some have symptoms that decrease with age
* refers to the patient's likely outcome after treatment.
* tends to be poor, even for early tumors that can be removed by surgery.
* typically varies according to the degree of brain malformation.
* varies according to the severity of child's associated abnormalities
  - the condition's associated neurological disorders
  - and is somewhat dependent on what form of lymphoma the dog has
  - depending on the type of tumor

Weather forecasting
* is another example of subjective probability
  - far more advanced through the use of satellites
  - one of the many facets of meteorology
* science and an art.