import * as Operation from "../../operation.js";
import { result } from "../../utility/result.js";
import { DistError } from "../DistError.js";
import { BaseSymbolicDist } from "./BaseSymbolicDist.js";
import { PointMass } from "./PointMass.js";
type Args = {
    mean: number;
    stdev: number;
};
export declare class Normal extends BaseSymbolicDist<"Normal", Args> {
    readonly symbolicType = "Normal";
    private _mean;
    private _stdev;
    private constructor();
    static make({ mean, stdev }: Args): result<Normal, string>;
    getArgs(): {
        mean: number;
        stdev: number;
    };
    toString(): string;
    simplePdf(x: number): number;
    cdf(x: number): number;
    inv(x: number): number;
    sample(): number;
    mean(): number;
    stdev(): result<number, DistError>;
    variance(): result<number, DistError>;
    _isEqual(other: Normal): boolean;
    static fromCredibleInterval({ low, high, probability, }: {
        low: number;
        high: number;
        probability: number;
    }): result<Normal, string>;
    static add(n1: Normal, n2: Normal): Normal;
    static subtract(n1: Normal, n2: Normal): Normal;
    static operate(operation: Operation.AlgebraicOperation, n1: Normal, n2: Normal): Normal | undefined;
    static operateFloatFirst(operation: Operation.AlgebraicOperation, n1: number, n2: Normal): Normal | PointMass | undefined;
    static operateFloatSecond(operation: Operation.AlgebraicOperation, n1: Normal, n2: number): Normal | PointMass | undefined;
}
export {};
//# sourceMappingURL=Normal.d.ts.map